Medical Sauna 4 Full Spectrum Infrared Sauna | 1-2 Person

medical sauna 4

Medical Sauna 4 Full Spectrum Infrared Sauna | 1-2 Person

Ships within 7-10 Days business days | FREE SHIPPING
  • Benefits
  • Best For
  • Bonuses
  • 1-2 person full spectrum sauna
  • 6 heaters + chromatic therapy
  • Single 120V plug, no electrician
  • Doctor-designed by 48 MDs
  • 1-2 person home sauna
  • Full spectrum infrared therapy
  • Single outlet convenience
  • Couples or solo sessions
  • Full spectrum + chromatic therapy
  • Rapid Internal Heating System
  • 3-year warranty included
  • Free shipping included
Regular price
$5,499.00
Regular price
$11,999.00
Sale price
$5,499.00
Save $6,500.00
Save $6,500.00 USD

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Description
Description

Product: Medical 4 Full Spectrum Infrared Sauna by Medical Saunas™

Type: Indoor full spectrum infrared sauna for home use

Capacity: 1-2 people

Price range: Check current sale price above

Key fact: Designed by 48 doctors over 10 years. 6 heaters including 2 front-facing panels for 3D surround heat. Plugs into a standard 120V household outlet. Features silent heating, deep bench seating, interior reading light, and chromatic therapy not found in the smaller Medical 3. Built with Canadian hemlock in Los Angeles, CA.

Medical 4 Full Spectrum Infrared Sauna: 1-2 Person, Doctor-Designed

The Medical 4 is the step up from the entry-level Medical 3. It fits 1-2 people comfortably and adds features the smaller model lacks: two front-facing heaters for full 3D surround heat, deep bench seating, a silent heating system, chromatic therapy, and an interior reading light. It was engineered by a team of 48 doctors, pain specialists, and cardiologists over a decade of research.

Like the Medical 3, it runs on a standard 120V/15A household outlet. No electrician, no special wiring. But the wider cabin (48″ × 42″ exterior vs 39″ × 36″) gives you room to stretch during solo sessions or sit beside a partner. It heats up in roughly 40 minutes and delivers therapeutic infrared energy from all directions.

Doctor Recommended Full Spectrum Heaters Handcrafted in USA 3-Year Warranty 120V Plug & Play Silent Heating 1-2 Person

Medical 4 Sauna Specifications

Capacity 1-2 People
Heaters 6 Ultra Full Spectrum Red Light Heaters™ (includes 2 front-facing panels)
Interior Dimensions (W×D×H) 44″ × 38″ × 69″
Exterior Dimensions (W×D×H) 48″ × 42″ × 75″
Operating Voltage 120V / 15 Amp
Plug Type 1-120VAC / 15AMP (standard household outlet)
Wattage 1,700W
Weight 405 lbs
Construction Natural Canadian Hemlock Wood
Assembly Clasp-together, no tools needed (2 people recommended)
Door Tempered Glass
Warranty 3 Years (Labor + Parts + Structure) included free

What’s Included

6 Ultra Full Spectrum Red Light Heaters 3D Surround Heat with 2 Front Heaters Rapid Internal Heating System™ 3D Heat Therapy™ Hot/Cold Cleansing System™ The Detox Routine™ Safe Cool Down System™ Insulated Airflow System™ Skin Rejuvenation System™ Silent Heating System™ Deep Bench Seating Interior Reading Light System™ Chromatic Therapy System™ Energy Efficient Heating System™ LED Control Panel™ Mood Lighting™ Bluetooth Speaker System MP3 Connection Roof Vent Tempered Glass Door

Medical 4 vs the entry model: What the Upgrade Gets You

Both share the same core Medical Sauna™ therapy systems. The Medical 4 adds five features that make longer daily sessions more comfortable and more effective:

3D Surround Heat with 2 Front Heaters — The the entry model heats from the sides and back only. The Medical 4 adds two front-facing panels that reach your chest, abdomen, and thighs directly. More uniform coverage means faster, deeper heating across the full body.

Deep Bench Seating — Wider, deeper bench for 30-45 minute sessions without pressure points. Matters a lot for daily use.

Silent Heating System™ — Quieter heater design. If you meditate, read, or listen to music during sessions, you won't hear the heaters cycling on and off.

Interior Reading Light System™ — A dedicated light inside the cabin. Useful if you sauna in a dimly lit room or want to read during sessions.

Chromatic Therapy System™ — Color light therapy that cycles through wavelengths studied for mood, skin health, and relaxation benefits. Both models have mood lighting, but only the Medical 4 adds this dedicated therapy mode.

Medical 4 Infrared Sauna Features

Natural Hemlock Wood Construction

Built with natural Canadian hemlock, selected after years of testing for its strength and health properties. Hemlock hardens with age, making the sauna more durable over time. Its natural astringent qualities help cleanse skin during sessions, complementing the infrared detox effect. The wood puts off a clean, natural scent when heated.

Rapid Internal Heating System™

Most infrared saunas need 90 minutes to 2 hours to preheat. The Medical 4 reaches full temperature in about 40 minutes. You get more therapeutic time per session, lower electricity draw, and the ability to do hot/cold therapy rounds. Step out, cool down, return to a fully heated cabin within minutes. The rapid heat-up also simulates the body's response to exercise, boosting heat tolerance and immune function over time.

3D Heat Therapy™ with Front Heaters

Six heaters positioned around the cabin, including two front-facing panels, deliver infrared energy from every direction. Far infrared waves penetrate deep into tissue and cells. This helps relieve sore muscles, increase range of motion, reduce spasms, and lower pain. The front heaters are the key differentiator from the the entry model, which only heats from the sides and back.

Full Spectrum Heater Technology

The Medical 4's heaters emit near-infrared, mid-infrared, and far-infrared wavelengths simultaneously. Near-infrared targets skin and surface tissue. Mid-infrared penetrates into soft tissue and joints. Far-infrared raises core body temperature for cardiovascular and detox benefits. Most budget saunas only offer a single wavelength. Full spectrum coverage means you get the widest range of therapeutic effects in every session.

The Detox Routine™

Sustained infrared heat opens pores and drives out accumulated toxins: BPA from household plastics, heavy metals, phthalates from processed foods, and nicotine. Following the Detox Routine™ protocol with consistent daily sessions delivers a level of detoxification that surface-heat saunas cannot match.

Safe Cool Down System™

After a session, the cabin's airflow design releases heat gradually. Your body cools at a safe, controlled pace instead of the abrupt temperature drop you get with poorly designed saunas. This reduces dizziness risk and supports healthy recovery.

Insulated Airflow System™

The Medical 4's double-wall insulation keeps cabin temperature consistent with minimal energy draw. Once it reaches operating temperature, the heaters cycle less frequently, keeping electricity costs lower during long sessions.

Who Is the Medical 4 Full Spectrum Sauna For?

The Medical 4 sits between the compact the entry model and the wider Medical 5. It fits you if:

  • You want space for 1-2 people (solo use with room to move, or side-by-side with a partner)
  • You want front-facing heaters for full-body coverage, particularly chest and thigh therapy
  • You value quiet operation for meditation, reading, or music during sessions
  • You still want a standard 120V/15A plug with no electrician needed
  • You have a space at least 48″ wide and 42″ deep
  • You plan to use the sauna daily for pain management, recovery, or detox

Too big? The Medical 3 fits one person in a 39″ × 36″ footprint on the same 120V plug. Need more room? The Medical 5 fits 2-3 people with 9 heaters, but requires a 120V/35A circuit (two plugs).

Designed and Built in the USA

Medical Saunas™ are designed, developed, and hand-assembled at the company's Los Angeles factory. The team works directly with medical doctors, cardiologists, and pain specialists at every stage. No outsourced manufacturing. Every unit ships direct from LA.

Backed by Documented Medical Research

Medical Saunas™ only lists health benefits supported by published clinical studies. The Medical Sauna Series™ took 10 years to develop with input from 48 medical professionals. Each feature was chosen for its measured health impact. Daily infrared sauna use has been studied for cardiovascular support, immune function, pain reduction, and full-body detoxification.

Medical Sauna Series™ Full Feature Comparison

Feature / Spec Medical 3™ Medical 4™ Medical 5™ Medical 6™ Medical 7 Plus™
Hot/Cold Cleansing System™
Detox Routine™
Insulated Airflow System™
3D Heat Therapy™
Safe Cool Down System™
Skin Rejuvenation/Cleansing System™
Natural Hemlock Wooden Construction
Simple Touch LED Control Panel™
Clasp-Together Assembly
Roof Vent
Tempered Glass Door
Speaker System with MP3 Connection
Ultra Full Spectrum Red Light Heaters™
Energy Efficient Heating System™
Rapid Internal Heating System™
Bluetooth Functionality
Mood Lighting™
3D Surround Heat with 2 Front Heaters
Chromatic Therapy System™
Deep Bench Seating for Extra Comfort
Interior Reading Light System™
Silent Heating System™
Long Enough to Lay Down
Color Light Therapy
Full Spectrum Heaters™ (2X Faster)
15% Thicker Glass & Wood Panels
Built-in Backrest
Audio Theater System™
Omni-Directional Heating™
Executive Corner Unit Design
Extra-Insulated Airflow System™
Extra-Rapid Internal Heating System™
SPECIFICATIONS
Capacity 1 person 1-2 people 2-3 people 3-4 people 4-6 people
Heaters 6 6 9 11 13
Interior (W×D×H) 36″×32″×66.5″ 44″×38″×69″ 57″×37″×69″ 67″×38″×69″ 62″×62″×69″
Exterior (W×D×H) 39″×36″×73″ 48″×42″×75″ 63″×42″×75″ 71″×42″×77″ 66″×66″×77″
Operating Voltage 120V/15A 120V/15A 120V/35A 120V/35A 220V/30A
Plug Type 1×15A 1×15A 15A + 20A 15A + 20A 1×220V/30A
Watts 1,500W 1,700W 2,600W 3,100W 4,100W
Weight 321 lbs 405 lbs 505 lbs 612 lbs 724 lbs
Medical 3™ You’re here Medical 5™ Medical 6™ Medical 7 Plus™

Shipping and Warranty

Free Curbside Shipping

Ships within 5 business days. Delivered curbside at no charge. White glove technician assembly available at checkout (no stairs +$899 / with stairs +$999).

3-Year Warranty Included

Covers labor, parts, and structure at no extra cost. Extended warranty add-ons: 1-year (+$750) or 2-year (+$1,500) available at checkout.

Medical 4 Sauna: Frequently Asked Questions

Does the Medical 4 infrared sauna need special wiring?

No. It runs on a standard 120V/15A household outlet with a 1-120VAC/15AMP plug. No electrician or dedicated circuit required. The Medical 4 is the largest model in the Medical Sauna Series that still uses a standard outlet. The Medical 5 and above need higher amperage circuits.

How many people fit in the Medical 4 sauna?

The Medical 4 fits 1-2 people. The interior is 44 inches wide and 38 inches deep with a deep bench seat. One person sits very comfortably with room to spare. Two adults can sit side-by-side, though it may feel snug for larger individuals.

What does "full spectrum" mean in the Medical 4 sauna?

Full spectrum means the heaters emit three types of infrared wavelengths at once. Near-infrared targets skin and surface tissue. Mid-infrared reaches soft tissue and joints. Far-infrared penetrates deepest, raising core body temperature for cardiovascular and detox benefits. Most budget saunas only produce far-infrared. Full spectrum gives you the widest therapeutic range per session.

What is the difference between the Medical 3 and Medical 4?

The Medical 4 adds five features not found on the the entry model: two front-facing heaters for full 3D surround heat, deep bench seating, a silent heating system, an interior reading light, and chromatic therapy. It is also wider (48 x 42 inches exterior vs 39 x 36), runs at 1,700W vs 1,500W, and weighs 405 lbs vs 321 lbs. Both use a standard 120V/15A plug. Choose the the entry model for tight spaces and solo use. Choose the Medical 4 for fuller body coverage and room for two.

What is a medical sauna?

A medical sauna is an infrared sauna engineered by healthcare professionals to deliver measurable therapeutic benefits. The Medical Sauna Series by Medical Saunas was developed over 10 years with input from 48 doctors, pain specialists, and cardiologists. Every feature targets documented health outcomes: pain relief, improved cardiovascular function, detoxification, immune support, and better sleep. It differs from standard infrared saunas in that each component is selected based on clinical research, not marketing appeal.

How long does the Medical 4 take to heat up?

About 40 minutes to reach full operating temperature. Most competing infrared saunas take 90 minutes to 2 hours. The Rapid Internal Heating System means you spend more time in the sauna and less time waiting.

Can I assemble the Medical 4 myself?

Yes. It uses a clasp-together design with no tools required. Two people are recommended since the unit weighs 405 lbs total. Professional white glove installation is available at checkout if you prefer not to do it yourself.

How much space do I need for the Medical 4?

The exterior footprint is 48 inches wide, 42 inches deep, and 75 inches tall. Add a few inches on each side for airflow and access. It fits comfortably in a spare bedroom, large closet, garage, or basement. The standard ceiling height requirement is just over 6 feet 3 inches.

Can you use an infrared sauna with a pacemaker?

This is a question for your cardiologist. Infrared saunas produce heat, not electromagnetic interference, so they differ from traditional EMF concerns with pacemakers. However, the heat itself raises heart rate and affects blood pressure. Medical Saunas recommends consulting your doctor before using any sauna if you have a pacemaker or other implanted cardiac device.

Are medical saunas available for wholesale or medical practices?

Yes. RecovAthlete serves both individual buyers and B2B customers including gyms, clinics, medspas, and wellness centers. For wholesale pricing or multi-unit orders, call 866-861-6317 or email [email protected] to speak with a specialist.

Is the Medical 4 sauna safe to use every day?

Yes. The Medical Sauna Series is designed for daily use. It features low EMF emissions, a Safe Cool Down System for gradual post-session recovery, and adjustable temperature controls. Consult your healthcare provider for personalized guidance on session length and frequency.

BEST FOR:

1-2 person home sauna

Fits two adults side by side. Chromatic therapy adds color light benefits on top of full spectrum infrared.

Couples wanting shared infrared therapy

Daily sessions together. No taking turns. Both occupants get full heater coverage.

Single-outlet convenience

120V/15A. Same standard outlet as the Medical 3 but with room for a second person.

Upgrade from the Medical 3

Same 6 heaters, larger cabin, chromatic therapy added. The next step up without changing your electrical.

NOT IDEAL FOR:

Not for 3+ people. For 2-3 people with lay-down interior, see the Medical 5. For couples wanting Ultra heaters, see the Medical 6 Ultra.

Financing Options Available

We work with four financing partners so you can spread the cost over time. Apply with more than one to compare offers.

Brickhouse Capital

Up to $250K, one-page app. Approval in 24 hours. Lease or EFA options.

Reliant Capital

Up to $500K app-only. 3-24 month deferred payments. 2-4 hour approvals.

Acorn Finance

30+ lenders, one app. Prequalify in 60 seconds. Terms up to 12 years.

KWIPPED (APPROVE)

Lenders compete for your deal. Up to 3 offers. 12-60 month terms.

Visit our financing page to apply, or call 866-861-6317.

Compare All Medical Infrared Sauna Models

Not sure which model fits? Compare every medical infrared sauna side by side.

Model Capacity Key Feature Power Price Link
Medical 3 1 Person 6 heaters, entry-level 120V $3,449 View
Medical 4 (You are here) 1-2 Person 6 heaters + chromatic therapy 120V $5,499 Current
Medical 5 2-3 Person 9 heaters, lay-down interior 120V $7,449 View
Medical 5 Ultra 1 Person Ultra full-spectrum, hot yoga 120V $7,599 View
Medical 6 3-4 Person 11 heaters, audio theater 120V $9,499 View
Medical 6 Ultra 2 Person Ultra full-spectrum, hot yoga 120V $9,599 View
Medical 6 Plus 6 Person Extended capacity infrared 120V $12,649 View
Medical 7 Plus 4-6 Person 13 heaters, corner flagship 220V $12,449 View
Medical 7 Ultra 3 Person Ultra full-spectrum, hot yoga 120V $12,599 View
Medical 8 Plus 4 Person Premium infrared, full features 220V $15,849 View
Medical 8 Plus Ultra 3-6 Person V2 ultra, hot yoga compatible 220V $15,599 View
Medical 9 Plus Hybrid 6 Person Infrared + steam dual mode 220V $15,899 View

Prices shown are current sale prices. Call 866-861-6317 for volume pricing or bundle deals.

120% Price Match
Financing
Shipping
Warranty

Product: Medical 4 Full Spectrum Infrared Sauna by Medical Saunas™

Type: Indoor full spectrum infrared sauna for home use

Capacity: 1-2 people

Price range: Check current sale price above

Key fact: Designed by 48 doctors over 10 years. 6 heaters including 2 front-facing panels for 3D surround heat. Plugs into a standard 120V household outlet. Features silent heating, deep bench seating, interior reading light, and chromatic therapy not found in the smaller Medical 3. Built with Canadian hemlock in Los Angeles, CA.

Medical 4 Full Spectrum Infrared Sauna: 1-2 Person, Doctor-Designed

The Medical 4 is the step up from the entry-level Medical 3. It fits 1-2 people comfortably and adds features the smaller model lacks: two front-facing heaters for full 3D surround heat, deep bench seating, a silent heating system, chromatic therapy, and an interior reading light. It was engineered by a team of 48 doctors, pain specialists, and cardiologists over a decade of research.

Like the Medical 3, it runs on a standard 120V/15A household outlet. No electrician, no special wiring. But the wider cabin (48″ × 42″ exterior vs 39″ × 36″) gives you room to stretch during solo sessions or sit beside a partner. It heats up in roughly 40 minutes and delivers therapeutic infrared energy from all directions.

Doctor Recommended Full Spectrum Heaters Handcrafted in USA 3-Year Warranty 120V Plug & Play Silent Heating 1-2 Person

Medical 4 Sauna Specifications

Capacity 1-2 People
Heaters 6 Ultra Full Spectrum Red Light Heaters™ (includes 2 front-facing panels)
Interior Dimensions (W×D×H) 44″ × 38″ × 69″
Exterior Dimensions (W×D×H) 48″ × 42″ × 75″
Operating Voltage 120V / 15 Amp
Plug Type 1-120VAC / 15AMP (standard household outlet)
Wattage 1,700W
Weight 405 lbs
Construction Natural Canadian Hemlock Wood
Assembly Clasp-together, no tools needed (2 people recommended)
Door Tempered Glass
Warranty 3 Years (Labor + Parts + Structure) included free

What’s Included

6 Ultra Full Spectrum Red Light Heaters 3D Surround Heat with 2 Front Heaters Rapid Internal Heating System™ 3D Heat Therapy™ Hot/Cold Cleansing System™ The Detox Routine™ Safe Cool Down System™ Insulated Airflow System™ Skin Rejuvenation System™ Silent Heating System™ Deep Bench Seating Interior Reading Light System™ Chromatic Therapy System™ Energy Efficient Heating System™ LED Control Panel™ Mood Lighting™ Bluetooth Speaker System MP3 Connection Roof Vent Tempered Glass Door

Medical 4 vs the entry model: What the Upgrade Gets You

Both share the same core Medical Sauna™ therapy systems. The Medical 4 adds five features that make longer daily sessions more comfortable and more effective:

3D Surround Heat with 2 Front Heaters — The the entry model heats from the sides and back only. The Medical 4 adds two front-facing panels that reach your chest, abdomen, and thighs directly. More uniform coverage means faster, deeper heating across the full body.

Deep Bench Seating — Wider, deeper bench for 30-45 minute sessions without pressure points. Matters a lot for daily use.

Silent Heating System™ — Quieter heater design. If you meditate, read, or listen to music during sessions, you won't hear the heaters cycling on and off.

Interior Reading Light System™ — A dedicated light inside the cabin. Useful if you sauna in a dimly lit room or want to read during sessions.

Chromatic Therapy System™ — Color light therapy that cycles through wavelengths studied for mood, skin health, and relaxation benefits. Both models have mood lighting, but only the Medical 4 adds this dedicated therapy mode.

Medical 4 Infrared Sauna Features

Natural Hemlock Wood Construction

Built with natural Canadian hemlock, selected after years of testing for its strength and health properties. Hemlock hardens with age, making the sauna more durable over time. Its natural astringent qualities help cleanse skin during sessions, complementing the infrared detox effect. The wood puts off a clean, natural scent when heated.

Rapid Internal Heating System™

Most infrared saunas need 90 minutes to 2 hours to preheat. The Medical 4 reaches full temperature in about 40 minutes. You get more therapeutic time per session, lower electricity draw, and the ability to do hot/cold therapy rounds. Step out, cool down, return to a fully heated cabin within minutes. The rapid heat-up also simulates the body's response to exercise, boosting heat tolerance and immune function over time.

3D Heat Therapy™ with Front Heaters

Six heaters positioned around the cabin, including two front-facing panels, deliver infrared energy from every direction. Far infrared waves penetrate deep into tissue and cells. This helps relieve sore muscles, increase range of motion, reduce spasms, and lower pain. The front heaters are the key differentiator from the the entry model, which only heats from the sides and back.

Full Spectrum Heater Technology

The Medical 4's heaters emit near-infrared, mid-infrared, and far-infrared wavelengths simultaneously. Near-infrared targets skin and surface tissue. Mid-infrared penetrates into soft tissue and joints. Far-infrared raises core body temperature for cardiovascular and detox benefits. Most budget saunas only offer a single wavelength. Full spectrum coverage means you get the widest range of therapeutic effects in every session.

The Detox Routine™

Sustained infrared heat opens pores and drives out accumulated toxins: BPA from household plastics, heavy metals, phthalates from processed foods, and nicotine. Following the Detox Routine™ protocol with consistent daily sessions delivers a level of detoxification that surface-heat saunas cannot match.

Safe Cool Down System™

After a session, the cabin's airflow design releases heat gradually. Your body cools at a safe, controlled pace instead of the abrupt temperature drop you get with poorly designed saunas. This reduces dizziness risk and supports healthy recovery.

Insulated Airflow System™

The Medical 4's double-wall insulation keeps cabin temperature consistent with minimal energy draw. Once it reaches operating temperature, the heaters cycle less frequently, keeping electricity costs lower during long sessions.

Who Is the Medical 4 Full Spectrum Sauna For?

The Medical 4 sits between the compact the entry model and the wider Medical 5. It fits you if:

  • You want space for 1-2 people (solo use with room to move, or side-by-side with a partner)
  • You want front-facing heaters for full-body coverage, particularly chest and thigh therapy
  • You value quiet operation for meditation, reading, or music during sessions
  • You still want a standard 120V/15A plug with no electrician needed
  • You have a space at least 48″ wide and 42″ deep
  • You plan to use the sauna daily for pain management, recovery, or detox

Too big? The Medical 3 fits one person in a 39″ × 36″ footprint on the same 120V plug. Need more room? The Medical 5 fits 2-3 people with 9 heaters, but requires a 120V/35A circuit (two plugs).

Designed and Built in the USA

Medical Saunas™ are designed, developed, and hand-assembled at the company's Los Angeles factory. The team works directly with medical doctors, cardiologists, and pain specialists at every stage. No outsourced manufacturing. Every unit ships direct from LA.

Backed by Documented Medical Research

Medical Saunas™ only lists health benefits supported by published clinical studies. The Medical Sauna Series™ took 10 years to develop with input from 48 medical professionals. Each feature was chosen for its measured health impact. Daily infrared sauna use has been studied for cardiovascular support, immune function, pain reduction, and full-body detoxification.

Medical Sauna Series™ Full Feature Comparison

Feature / Spec Medical 3™ Medical 4™ Medical 5™ Medical 6™ Medical 7 Plus™
Hot/Cold Cleansing System™
Detox Routine™
Insulated Airflow System™
3D Heat Therapy™
Safe Cool Down System™
Skin Rejuvenation/Cleansing System™
Natural Hemlock Wooden Construction
Simple Touch LED Control Panel™
Clasp-Together Assembly
Roof Vent
Tempered Glass Door
Speaker System with MP3 Connection
Ultra Full Spectrum Red Light Heaters™
Energy Efficient Heating System™
Rapid Internal Heating System™
Bluetooth Functionality
Mood Lighting™
3D Surround Heat with 2 Front Heaters
Chromatic Therapy System™
Deep Bench Seating for Extra Comfort
Interior Reading Light System™
Silent Heating System™
Long Enough to Lay Down
Color Light Therapy
Full Spectrum Heaters™ (2X Faster)
15% Thicker Glass & Wood Panels
Built-in Backrest
Audio Theater System™
Omni-Directional Heating™
Executive Corner Unit Design
Extra-Insulated Airflow System™
Extra-Rapid Internal Heating System™
SPECIFICATIONS
Capacity 1 person 1-2 people 2-3 people 3-4 people 4-6 people
Heaters 6 6 9 11 13
Interior (W×D×H) 36″×32″×66.5″ 44″×38″×69″ 57″×37″×69″ 67″×38″×69″ 62″×62″×69″
Exterior (W×D×H) 39″×36″×73″ 48″×42″×75″ 63″×42″×75″ 71″×42″×77″ 66″×66″×77″
Operating Voltage 120V/15A 120V/15A 120V/35A 120V/35A 220V/30A
Plug Type 1×15A 1×15A 15A + 20A 15A + 20A 1×220V/30A
Watts 1,500W 1,700W 2,600W 3,100W 4,100W
Weight 321 lbs 405 lbs 505 lbs 612 lbs 724 lbs
Medical 3™ You’re here Medical 5™ Medical 6™ Medical 7 Plus™

Shipping and Warranty

Free Curbside Shipping

Ships within 5 business days. Delivered curbside at no charge. White glove technician assembly available at checkout (no stairs +$899 / with stairs +$999).

3-Year Warranty Included

Covers labor, parts, and structure at no extra cost. Extended warranty add-ons: 1-year (+$750) or 2-year (+$1,500) available at checkout.

Medical 4 Sauna: Frequently Asked Questions

Does the Medical 4 infrared sauna need special wiring?

No. It runs on a standard 120V/15A household outlet with a 1-120VAC/15AMP plug. No electrician or dedicated circuit required. The Medical 4 is the largest model in the Medical Sauna Series that still uses a standard outlet. The Medical 5 and above need higher amperage circuits.

How many people fit in the Medical 4 sauna?

The Medical 4 fits 1-2 people. The interior is 44 inches wide and 38 inches deep with a deep bench seat. One person sits very comfortably with room to spare. Two adults can sit side-by-side, though it may feel snug for larger individuals.

What does "full spectrum" mean in the Medical 4 sauna?

Full spectrum means the heaters emit three types of infrared wavelengths at once. Near-infrared targets skin and surface tissue. Mid-infrared reaches soft tissue and joints. Far-infrared penetrates deepest, raising core body temperature for cardiovascular and detox benefits. Most budget saunas only produce far-infrared. Full spectrum gives you the widest therapeutic range per session.

What is the difference between the Medical 3 and Medical 4?

The Medical 4 adds five features not found on the the entry model: two front-facing heaters for full 3D surround heat, deep bench seating, a silent heating system, an interior reading light, and chromatic therapy. It is also wider (48 x 42 inches exterior vs 39 x 36), runs at 1,700W vs 1,500W, and weighs 405 lbs vs 321 lbs. Both use a standard 120V/15A plug. Choose the the entry model for tight spaces and solo use. Choose the Medical 4 for fuller body coverage and room for two.

What is a medical sauna?

A medical sauna is an infrared sauna engineered by healthcare professionals to deliver measurable therapeutic benefits. The Medical Sauna Series by Medical Saunas was developed over 10 years with input from 48 doctors, pain specialists, and cardiologists. Every feature targets documented health outcomes: pain relief, improved cardiovascular function, detoxification, immune support, and better sleep. It differs from standard infrared saunas in that each component is selected based on clinical research, not marketing appeal.

How long does the Medical 4 take to heat up?

About 40 minutes to reach full operating temperature. Most competing infrared saunas take 90 minutes to 2 hours. The Rapid Internal Heating System means you spend more time in the sauna and less time waiting.

Can I assemble the Medical 4 myself?

Yes. It uses a clasp-together design with no tools required. Two people are recommended since the unit weighs 405 lbs total. Professional white glove installation is available at checkout if you prefer not to do it yourself.

How much space do I need for the Medical 4?

The exterior footprint is 48 inches wide, 42 inches deep, and 75 inches tall. Add a few inches on each side for airflow and access. It fits comfortably in a spare bedroom, large closet, garage, or basement. The standard ceiling height requirement is just over 6 feet 3 inches.

Can you use an infrared sauna with a pacemaker?

This is a question for your cardiologist. Infrared saunas produce heat, not electromagnetic interference, so they differ from traditional EMF concerns with pacemakers. However, the heat itself raises heart rate and affects blood pressure. Medical Saunas recommends consulting your doctor before using any sauna if you have a pacemaker or other implanted cardiac device.

Are medical saunas available for wholesale or medical practices?

Yes. RecovAthlete serves both individual buyers and B2B customers including gyms, clinics, medspas, and wellness centers. For wholesale pricing or multi-unit orders, call 866-861-6317 or email [email protected] to speak with a specialist.

Is the Medical 4 sauna safe to use every day?

Yes. The Medical Sauna Series is designed for daily use. It features low EMF emissions, a Safe Cool Down System for gradual post-session recovery, and adjustable temperature controls. Consult your healthcare provider for personalized guidance on session length and frequency.

BEST FOR:

1-2 person home sauna

Fits two adults side by side. Chromatic therapy adds color light benefits on top of full spectrum infrared.

Couples wanting shared infrared therapy

Daily sessions together. No taking turns. Both occupants get full heater coverage.

Single-outlet convenience

120V/15A. Same standard outlet as the Medical 3 but with room for a second person.

Upgrade from the Medical 3

Same 6 heaters, larger cabin, chromatic therapy added. The next step up without changing your electrical.

NOT IDEAL FOR:

Not for 3+ people. For 2-3 people with lay-down interior, see the Medical 5. For couples wanting Ultra heaters, see the Medical 6 Ultra.

Financing Options Available

We work with four financing partners so you can spread the cost over time. Apply with more than one to compare offers.

Brickhouse Capital

Up to $250K, one-page app. Approval in 24 hours. Lease or EFA options.

Reliant Capital

Up to $500K app-only. 3-24 month deferred payments. 2-4 hour approvals.

Acorn Finance

30+ lenders, one app. Prequalify in 60 seconds. Terms up to 12 years.

KWIPPED (APPROVE)

Lenders compete for your deal. Up to 3 offers. 12-60 month terms.

Visit our financing page to apply, or call 866-861-6317.

Compare All Medical Infrared Sauna Models

Not sure which model fits? Compare every medical infrared sauna side by side.

Model Capacity Key Feature Power Price Link
Medical 3 1 Person 6 heaters, entry-level 120V $3,449 View
Medical 4 (You are here) 1-2 Person 6 heaters + chromatic therapy 120V $5,499 Current
Medical 5 2-3 Person 9 heaters, lay-down interior 120V $7,449 View
Medical 5 Ultra 1 Person Ultra full-spectrum, hot yoga 120V $7,599 View
Medical 6 3-4 Person 11 heaters, audio theater 120V $9,499 View
Medical 6 Ultra 2 Person Ultra full-spectrum, hot yoga 120V $9,599 View
Medical 6 Plus 6 Person Extended capacity infrared 120V $12,649 View
Medical 7 Plus 4-6 Person 13 heaters, corner flagship 220V $12,449 View
Medical 7 Ultra 3 Person Ultra full-spectrum, hot yoga 120V $12,599 View
Medical 8 Plus 4 Person Premium infrared, full features 220V $15,849 View
Medical 8 Plus Ultra 3-6 Person V2 ultra, hot yoga compatible 220V $15,599 View
Medical 9 Plus Hybrid 6 Person Infrared + steam dual mode 220V $15,899 View

Prices shown are current sale prices. Call 866-861-6317 for volume pricing or bundle deals.

RecovAthlete's 120% Price Match Guarantee: Shop With Unmatched Confidence

At RecovAthlete, we’re here to support your recovery and performance goals—without overpaying. Our 120% Price Match Guarantee makes sure you always get the best deal. If you find a lower price, not only will we match it, we’ll beat it by adding 20% of the price difference back to your refund.

How It Works:

  • 60-Day Window: If you find the same item at a lower price from an authorized competitor within 60 days of your purchase, we’ll match it.
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How to Submit a Claim:

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With our 120% Price Match Guarantee, you can shop knowing you’ll never miss out on a better deal—because we’ll beat it.

Product: Medical 4 Full Spectrum Infrared Sauna by Medical Saunas™

Type: Indoor full spectrum infrared sauna for home use

Capacity: 1-2 people

Price range: Check current sale price above

Key fact: Designed by 48 doctors over 10 years. 6 heaters including 2 front-facing panels for 3D surround heat. Plugs into a standard 120V household outlet. Features silent heating, deep bench seating, interior reading light, and chromatic therapy not found in the smaller Medical 3. Built with Canadian hemlock in Los Angeles, CA.

Medical 4 Full Spectrum Infrared Sauna: 1-2 Person, Doctor-Designed

The Medical 4 is the step up from the entry-level Medical 3. It fits 1-2 people comfortably and adds features the smaller model lacks: two front-facing heaters for full 3D surround heat, deep bench seating, a silent heating system, chromatic therapy, and an interior reading light. It was engineered by a team of 48 doctors, pain specialists, and cardiologists over a decade of research.

Like the Medical 3, it runs on a standard 120V/15A household outlet. No electrician, no special wiring. But the wider cabin (48″ × 42″ exterior vs 39″ × 36″) gives you room to stretch during solo sessions or sit beside a partner. It heats up in roughly 40 minutes and delivers therapeutic infrared energy from all directions.

Doctor Recommended Full Spectrum Heaters Handcrafted in USA 3-Year Warranty 120V Plug & Play Silent Heating 1-2 Person

Medical 4 Sauna Specifications

Capacity 1-2 People
Heaters 6 Ultra Full Spectrum Red Light Heaters™ (includes 2 front-facing panels)
Interior Dimensions (W×D×H) 44″ × 38″ × 69″
Exterior Dimensions (W×D×H) 48″ × 42″ × 75″
Operating Voltage 120V / 15 Amp
Plug Type 1-120VAC / 15AMP (standard household outlet)
Wattage 1,700W
Weight 405 lbs
Construction Natural Canadian Hemlock Wood
Assembly Clasp-together, no tools needed (2 people recommended)
Door Tempered Glass
Warranty 3 Years (Labor + Parts + Structure) included free

What’s Included

6 Ultra Full Spectrum Red Light Heaters 3D Surround Heat with 2 Front Heaters Rapid Internal Heating System™ 3D Heat Therapy™ Hot/Cold Cleansing System™ The Detox Routine™ Safe Cool Down System™ Insulated Airflow System™ Skin Rejuvenation System™ Silent Heating System™ Deep Bench Seating Interior Reading Light System™ Chromatic Therapy System™ Energy Efficient Heating System™ LED Control Panel™ Mood Lighting™ Bluetooth Speaker System MP3 Connection Roof Vent Tempered Glass Door

Medical 4 vs the entry model: What the Upgrade Gets You

Both share the same core Medical Sauna™ therapy systems. The Medical 4 adds five features that make longer daily sessions more comfortable and more effective:

3D Surround Heat with 2 Front Heaters — The the entry model heats from the sides and back only. The Medical 4 adds two front-facing panels that reach your chest, abdomen, and thighs directly. More uniform coverage means faster, deeper heating across the full body.

Deep Bench Seating — Wider, deeper bench for 30-45 minute sessions without pressure points. Matters a lot for daily use.

Silent Heating System™ — Quieter heater design. If you meditate, read, or listen to music during sessions, you won't hear the heaters cycling on and off.

Interior Reading Light System™ — A dedicated light inside the cabin. Useful if you sauna in a dimly lit room or want to read during sessions.

Chromatic Therapy System™ — Color light therapy that cycles through wavelengths studied for mood, skin health, and relaxation benefits. Both models have mood lighting, but only the Medical 4 adds this dedicated therapy mode.

Medical 4 Infrared Sauna Features

Natural Hemlock Wood Construction

Built with natural Canadian hemlock, selected after years of testing for its strength and health properties. Hemlock hardens with age, making the sauna more durable over time. Its natural astringent qualities help cleanse skin during sessions, complementing the infrared detox effect. The wood puts off a clean, natural scent when heated.

Rapid Internal Heating System™

Most infrared saunas need 90 minutes to 2 hours to preheat. The Medical 4 reaches full temperature in about 40 minutes. You get more therapeutic time per session, lower electricity draw, and the ability to do hot/cold therapy rounds. Step out, cool down, return to a fully heated cabin within minutes. The rapid heat-up also simulates the body's response to exercise, boosting heat tolerance and immune function over time.

3D Heat Therapy™ with Front Heaters

Six heaters positioned around the cabin, including two front-facing panels, deliver infrared energy from every direction. Far infrared waves penetrate deep into tissue and cells. This helps relieve sore muscles, increase range of motion, reduce spasms, and lower pain. The front heaters are the key differentiator from the the entry model, which only heats from the sides and back.

Full Spectrum Heater Technology

The Medical 4's heaters emit near-infrared, mid-infrared, and far-infrared wavelengths simultaneously. Near-infrared targets skin and surface tissue. Mid-infrared penetrates into soft tissue and joints. Far-infrared raises core body temperature for cardiovascular and detox benefits. Most budget saunas only offer a single wavelength. Full spectrum coverage means you get the widest range of therapeutic effects in every session.

The Detox Routine™

Sustained infrared heat opens pores and drives out accumulated toxins: BPA from household plastics, heavy metals, phthalates from processed foods, and nicotine. Following the Detox Routine™ protocol with consistent daily sessions delivers a level of detoxification that surface-heat saunas cannot match.

Safe Cool Down System™

After a session, the cabin's airflow design releases heat gradually. Your body cools at a safe, controlled pace instead of the abrupt temperature drop you get with poorly designed saunas. This reduces dizziness risk and supports healthy recovery.

Insulated Airflow System™

The Medical 4's double-wall insulation keeps cabin temperature consistent with minimal energy draw. Once it reaches operating temperature, the heaters cycle less frequently, keeping electricity costs lower during long sessions.

Who Is the Medical 4 Full Spectrum Sauna For?

The Medical 4 sits between the compact the entry model and the wider Medical 5. It fits you if:

  • You want space for 1-2 people (solo use with room to move, or side-by-side with a partner)
  • You want front-facing heaters for full-body coverage, particularly chest and thigh therapy
  • You value quiet operation for meditation, reading, or music during sessions
  • You still want a standard 120V/15A plug with no electrician needed
  • You have a space at least 48″ wide and 42″ deep
  • You plan to use the sauna daily for pain management, recovery, or detox

Too big? The Medical 3 fits one person in a 39″ × 36″ footprint on the same 120V plug. Need more room? The Medical 5 fits 2-3 people with 9 heaters, but requires a 120V/35A circuit (two plugs).

Designed and Built in the USA

Medical Saunas™ are designed, developed, and hand-assembled at the company's Los Angeles factory. The team works directly with medical doctors, cardiologists, and pain specialists at every stage. No outsourced manufacturing. Every unit ships direct from LA.

Backed by Documented Medical Research

Medical Saunas™ only lists health benefits supported by published clinical studies. The Medical Sauna Series™ took 10 years to develop with input from 48 medical professionals. Each feature was chosen for its measured health impact. Daily infrared sauna use has been studied for cardiovascular support, immune function, pain reduction, and full-body detoxification.

Medical Sauna Series™ Full Feature Comparison

Feature / Spec Medical 3™ Medical 4™ Medical 5™ Medical 6™ Medical 7 Plus™
Hot/Cold Cleansing System™
Detox Routine™
Insulated Airflow System™
3D Heat Therapy™
Safe Cool Down System™
Skin Rejuvenation/Cleansing System™
Natural Hemlock Wooden Construction
Simple Touch LED Control Panel™
Clasp-Together Assembly
Roof Vent
Tempered Glass Door
Speaker System with MP3 Connection
Ultra Full Spectrum Red Light Heaters™
Energy Efficient Heating System™
Rapid Internal Heating System™
Bluetooth Functionality
Mood Lighting™
3D Surround Heat with 2 Front Heaters
Chromatic Therapy System™
Deep Bench Seating for Extra Comfort
Interior Reading Light System™
Silent Heating System™
Long Enough to Lay Down
Color Light Therapy
Full Spectrum Heaters™ (2X Faster)
15% Thicker Glass & Wood Panels
Built-in Backrest
Audio Theater System™
Omni-Directional Heating™
Executive Corner Unit Design
Extra-Insulated Airflow System™
Extra-Rapid Internal Heating System™
SPECIFICATIONS
Capacity 1 person 1-2 people 2-3 people 3-4 people 4-6 people
Heaters 6 6 9 11 13
Interior (W×D×H) 36″×32″×66.5″ 44″×38″×69″ 57″×37″×69″ 67″×38″×69″ 62″×62″×69″
Exterior (W×D×H) 39″×36″×73″ 48″×42″×75″ 63″×42″×75″ 71″×42″×77″ 66″×66″×77″
Operating Voltage 120V/15A 120V/15A 120V/35A 120V/35A 220V/30A
Plug Type 1×15A 1×15A 15A + 20A 15A + 20A 1×220V/30A
Watts 1,500W 1,700W 2,600W 3,100W 4,100W
Weight 321 lbs 405 lbs 505 lbs 612 lbs 724 lbs
Medical 3™ You’re here Medical 5™ Medical 6™ Medical 7 Plus™

Shipping and Warranty

Free Curbside Shipping

Ships within 5 business days. Delivered curbside at no charge. White glove technician assembly available at checkout (no stairs +$899 / with stairs +$999).

3-Year Warranty Included

Covers labor, parts, and structure at no extra cost. Extended warranty add-ons: 1-year (+$750) or 2-year (+$1,500) available at checkout.

Medical 4 Sauna: Frequently Asked Questions

Does the Medical 4 infrared sauna need special wiring?

No. It runs on a standard 120V/15A household outlet with a 1-120VAC/15AMP plug. No electrician or dedicated circuit required. The Medical 4 is the largest model in the Medical Sauna Series that still uses a standard outlet. The Medical 5 and above need higher amperage circuits.

How many people fit in the Medical 4 sauna?

The Medical 4 fits 1-2 people. The interior is 44 inches wide and 38 inches deep with a deep bench seat. One person sits very comfortably with room to spare. Two adults can sit side-by-side, though it may feel snug for larger individuals.

What does "full spectrum" mean in the Medical 4 sauna?

Full spectrum means the heaters emit three types of infrared wavelengths at once. Near-infrared targets skin and surface tissue. Mid-infrared reaches soft tissue and joints. Far-infrared penetrates deepest, raising core body temperature for cardiovascular and detox benefits. Most budget saunas only produce far-infrared. Full spectrum gives you the widest therapeutic range per session.

What is the difference between the Medical 3 and Medical 4?

The Medical 4 adds five features not found on the the entry model: two front-facing heaters for full 3D surround heat, deep bench seating, a silent heating system, an interior reading light, and chromatic therapy. It is also wider (48 x 42 inches exterior vs 39 x 36), runs at 1,700W vs 1,500W, and weighs 405 lbs vs 321 lbs. Both use a standard 120V/15A plug. Choose the the entry model for tight spaces and solo use. Choose the Medical 4 for fuller body coverage and room for two.

What is a medical sauna?

A medical sauna is an infrared sauna engineered by healthcare professionals to deliver measurable therapeutic benefits. The Medical Sauna Series by Medical Saunas was developed over 10 years with input from 48 doctors, pain specialists, and cardiologists. Every feature targets documented health outcomes: pain relief, improved cardiovascular function, detoxification, immune support, and better sleep. It differs from standard infrared saunas in that each component is selected based on clinical research, not marketing appeal.

How long does the Medical 4 take to heat up?

About 40 minutes to reach full operating temperature. Most competing infrared saunas take 90 minutes to 2 hours. The Rapid Internal Heating System means you spend more time in the sauna and less time waiting.

Can I assemble the Medical 4 myself?

Yes. It uses a clasp-together design with no tools required. Two people are recommended since the unit weighs 405 lbs total. Professional white glove installation is available at checkout if you prefer not to do it yourself.

How much space do I need for the Medical 4?

The exterior footprint is 48 inches wide, 42 inches deep, and 75 inches tall. Add a few inches on each side for airflow and access. It fits comfortably in a spare bedroom, large closet, garage, or basement. The standard ceiling height requirement is just over 6 feet 3 inches.

Can you use an infrared sauna with a pacemaker?

This is a question for your cardiologist. Infrared saunas produce heat, not electromagnetic interference, so they differ from traditional EMF concerns with pacemakers. However, the heat itself raises heart rate and affects blood pressure. Medical Saunas recommends consulting your doctor before using any sauna if you have a pacemaker or other implanted cardiac device.

Are medical saunas available for wholesale or medical practices?

Yes. RecovAthlete serves both individual buyers and B2B customers including gyms, clinics, medspas, and wellness centers. For wholesale pricing or multi-unit orders, call 866-861-6317 or email [email protected] to speak with a specialist.

Is the Medical 4 sauna safe to use every day?

Yes. The Medical Sauna Series is designed for daily use. It features low EMF emissions, a Safe Cool Down System for gradual post-session recovery, and adjustable temperature controls. Consult your healthcare provider for personalized guidance on session length and frequency.

BEST FOR:

1-2 person home sauna

Fits two adults side by side. Chromatic therapy adds color light benefits on top of full spectrum infrared.

Couples wanting shared infrared therapy

Daily sessions together. No taking turns. Both occupants get full heater coverage.

Single-outlet convenience

120V/15A. Same standard outlet as the Medical 3 but with room for a second person.

Upgrade from the Medical 3

Same 6 heaters, larger cabin, chromatic therapy added. The next step up without changing your electrical.

NOT IDEAL FOR:

Not for 3+ people. For 2-3 people with lay-down interior, see the Medical 5. For couples wanting Ultra heaters, see the Medical 6 Ultra.

Financing Options Available

We work with four financing partners so you can spread the cost over time. Apply with more than one to compare offers.

Brickhouse Capital

Up to $250K, one-page app. Approval in 24 hours. Lease or EFA options.

Reliant Capital

Up to $500K app-only. 3-24 month deferred payments. 2-4 hour approvals.

Acorn Finance

30+ lenders, one app. Prequalify in 60 seconds. Terms up to 12 years.

KWIPPED (APPROVE)

Lenders compete for your deal. Up to 3 offers. 12-60 month terms.

Visit our financing page to apply, or call 866-861-6317.

Compare All Medical Infrared Sauna Models

Not sure which model fits? Compare every medical infrared sauna side by side.

Model Capacity Key Feature Power Price Link
Medical 3 1 Person 6 heaters, entry-level 120V $3,449 View
Medical 4 (You are here) 1-2 Person 6 heaters + chromatic therapy 120V $5,499 Current
Medical 5 2-3 Person 9 heaters, lay-down interior 120V $7,449 View
Medical 5 Ultra 1 Person Ultra full-spectrum, hot yoga 120V $7,599 View
Medical 6 3-4 Person 11 heaters, audio theater 120V $9,499 View
Medical 6 Ultra 2 Person Ultra full-spectrum, hot yoga 120V $9,599 View
Medical 6 Plus 6 Person Extended capacity infrared 120V $12,649 View
Medical 7 Plus 4-6 Person 13 heaters, corner flagship 220V $12,449 View
Medical 7 Ultra 3 Person Ultra full-spectrum, hot yoga 120V $12,599 View
Medical 8 Plus 4 Person Premium infrared, full features 220V $15,849 View
Medical 8 Plus Ultra 3-6 Person V2 ultra, hot yoga compatible 220V $15,599 View
Medical 9 Plus Hybrid 6 Person Infrared + steam dual mode 220V $15,899 View

Prices shown are current sale prices. Call 866-861-6317 for volume pricing or bundle deals.

Flexible Financing for Your Recovery Equipment

Whether you're buying for personal use or outfitting a gym, clinic, or medspa, we've partnered with trusted financing companies to give you flexible ways to pay. Apply in minutes. Get a decision fast. Pay over time.

RecovAthlete has no control over any financing decision. Approval is based on your creditworthiness and is solely the lender's decision.

Personal Financing

Pay Over Time with Affirm

Buying a hyperbaric chamber, Pilates reformer, or infrared sauna for personal use? Affirm lets you split the cost into manageable payments.

How It Works

1

Add equipment to your cart and select Affirm at checkout.

2

Provide a few details: name, phone number, date of birth.

3

Get a real-time decision. Most approvals happen in seconds.

4

Choose the payment plan that fits your budget. Your order ships.

Payment Options

Pay in 4

Split your purchase into 4 interest-free payments, charged every 2 weeks. No interest. No fees.

Monthly Installments

Spread the cost over 3, 6, 12, 18, 24, or 36 months. Rates range from 0% to 36% APR depending on your credit profile.

Example: A $1,599 purchase might cost $145/mo over 12 months at 15% APR.

What You Should Know

No hidden fees. No origination fees, no prepayment penalties, and no late fees.

No credit score impact to apply. Soft check for prequalification. Monthly plans may involve a hard inquiry.

Pay it off early. No penalty. No extra charges. Close out your balance whenever you want.

Credit reporting. Affirm reports to Experian and TransUnion. On-time payments help. Late payments hurt.

Minimum purchase: $35.

U.S. shipping address required.

Affirm FAQs

What is Affirm?
A buy now, pay later lender that lets you split purchases into fixed payments with clear terms upfront.
How do I qualify?
You must be 18 or older and a U.S. resident. Affirm evaluates your credit profile and income to determine eligibility.
How fast is approval?
Most decisions come back in seconds. Occasionally it may take up to a few business days.
What are the interest rates?
Pay in 4 plans are always 0% interest. Monthly installment plans range from 0% to 36% APR. You'll see exact terms before you agree.
How do I make payments?
Through the Affirm app or at affirm.com. Affirm sends email and text reminders before each payment. You can also set up autopay.
Can I pay off my balance early?
Yes. No penalty, no extra charges.
Who do I contact for Affirm questions?
Visit affirm.com or reach out to their customer support team.
Commercial Financing

Financing for Businesses

Outfitting a gym, clinic, medspa, chiropractic office, or wellness studio? We work with four commercial financing partners so you can preserve cash flow and get the equipment your business needs now. Every partner has different strengths. We recommend applying with more than one to compare offers.

Equipment Financing

Brickhouse Capital

A private direct lender specializing in equipment financing since 2003. They make credit decisions in-house, which means faster approvals and more flexibility than a traditional bank.

Up to $250K with a one-page application, no financial statements
Larger amounts up to $1M+ with financials
Approval typically within 24 hours
Lease or equipment finance agreement (EFA) options
Tied to the business, not your personal credit report
Serves 25+ industries including health and wellness
Apply with Brickhouse Capital
Equipment Leasing

Reliant Capital

Provides equipment financing and leasing for medical, aesthetic, wellness, and other industries. Acts as both a direct lender and broker, giving them access to a wider range of credit options.

Up to $500K application-only (up to $5M with financials)
Finance agreements, leases, rental programs, and working capital
New or used equipment financing
3 to 24 month deferred payment options
2 to 4 hour credit approvals
Potential to deduct up to 80% of equipment financing on taxes
Apply with Reliant Capital
Lending Marketplace

Acorn Finance

A lending marketplace that connects you with 30+ lenders. Fill out one application and receive multiple personalized loan offers to compare side by side.

Loans from $1,000 up to $100,000
Terms up to 12 years (some lenders offer up to 20 years)
Prequalify in 60 seconds with no impact to your credit score
Compare offers from multiple lenders in one place
No early repayment penalties
Funds can arrive as soon as 1 business day after approval
Check Your Offers with Acorn Finance
Lender Marketplace

KWIPPED (APPROVE)

KWIPPED's APPROVE platform sends your application to a network of top equipment finance companies. Lenders compete to earn your business, which drives better rates and higher approval odds.

60-second application
Multiple lenders compete for your deal, up to 3 offers to compare
Financing terms from 12 to 60 months
Equipment financing ranges from roughly 5% to 25% equivalent APR
Minimum equipment value: $1,500
Businesses only (not available for personal/consumer use)
To get started with KWIPPED, reach out to us directly. We'll set up a custom application tailored to your specific equipment needs and order.

info@recovathlete.com    (866) 861-6317    Contact Form

 

Product: Medical 4 Full Spectrum Infrared Sauna by Medical Saunas™

Type: Indoor full spectrum infrared sauna for home use

Capacity: 1-2 people

Price range: Check current sale price above

Key fact: Designed by 48 doctors over 10 years. 6 heaters including 2 front-facing panels for 3D surround heat. Plugs into a standard 120V household outlet. Features silent heating, deep bench seating, interior reading light, and chromatic therapy not found in the smaller Medical 3. Built with Canadian hemlock in Los Angeles, CA.

Medical 4 Full Spectrum Infrared Sauna: 1-2 Person, Doctor-Designed

The Medical 4 is the step up from the entry-level Medical 3. It fits 1-2 people comfortably and adds features the smaller model lacks: two front-facing heaters for full 3D surround heat, deep bench seating, a silent heating system, chromatic therapy, and an interior reading light. It was engineered by a team of 48 doctors, pain specialists, and cardiologists over a decade of research.

Like the Medical 3, it runs on a standard 120V/15A household outlet. No electrician, no special wiring. But the wider cabin (48″ × 42″ exterior vs 39″ × 36″) gives you room to stretch during solo sessions or sit beside a partner. It heats up in roughly 40 minutes and delivers therapeutic infrared energy from all directions.

Doctor Recommended Full Spectrum Heaters Handcrafted in USA 3-Year Warranty 120V Plug & Play Silent Heating 1-2 Person

Medical 4 Sauna Specifications

Capacity 1-2 People
Heaters 6 Ultra Full Spectrum Red Light Heaters™ (includes 2 front-facing panels)
Interior Dimensions (W×D×H) 44″ × 38″ × 69″
Exterior Dimensions (W×D×H) 48″ × 42″ × 75″
Operating Voltage 120V / 15 Amp
Plug Type 1-120VAC / 15AMP (standard household outlet)
Wattage 1,700W
Weight 405 lbs
Construction Natural Canadian Hemlock Wood
Assembly Clasp-together, no tools needed (2 people recommended)
Door Tempered Glass
Warranty 3 Years (Labor + Parts + Structure) included free

What’s Included

6 Ultra Full Spectrum Red Light Heaters 3D Surround Heat with 2 Front Heaters Rapid Internal Heating System™ 3D Heat Therapy™ Hot/Cold Cleansing System™ The Detox Routine™ Safe Cool Down System™ Insulated Airflow System™ Skin Rejuvenation System™ Silent Heating System™ Deep Bench Seating Interior Reading Light System™ Chromatic Therapy System™ Energy Efficient Heating System™ LED Control Panel™ Mood Lighting™ Bluetooth Speaker System MP3 Connection Roof Vent Tempered Glass Door

Medical 4 vs the entry model: What the Upgrade Gets You

Both share the same core Medical Sauna™ therapy systems. The Medical 4 adds five features that make longer daily sessions more comfortable and more effective:

3D Surround Heat with 2 Front Heaters — The the entry model heats from the sides and back only. The Medical 4 adds two front-facing panels that reach your chest, abdomen, and thighs directly. More uniform coverage means faster, deeper heating across the full body.

Deep Bench Seating — Wider, deeper bench for 30-45 minute sessions without pressure points. Matters a lot for daily use.

Silent Heating System™ — Quieter heater design. If you meditate, read, or listen to music during sessions, you won't hear the heaters cycling on and off.

Interior Reading Light System™ — A dedicated light inside the cabin. Useful if you sauna in a dimly lit room or want to read during sessions.

Chromatic Therapy System™ — Color light therapy that cycles through wavelengths studied for mood, skin health, and relaxation benefits. Both models have mood lighting, but only the Medical 4 adds this dedicated therapy mode.

Medical 4 Infrared Sauna Features

Natural Hemlock Wood Construction

Built with natural Canadian hemlock, selected after years of testing for its strength and health properties. Hemlock hardens with age, making the sauna more durable over time. Its natural astringent qualities help cleanse skin during sessions, complementing the infrared detox effect. The wood puts off a clean, natural scent when heated.

Rapid Internal Heating System™

Most infrared saunas need 90 minutes to 2 hours to preheat. The Medical 4 reaches full temperature in about 40 minutes. You get more therapeutic time per session, lower electricity draw, and the ability to do hot/cold therapy rounds. Step out, cool down, return to a fully heated cabin within minutes. The rapid heat-up also simulates the body's response to exercise, boosting heat tolerance and immune function over time.

3D Heat Therapy™ with Front Heaters

Six heaters positioned around the cabin, including two front-facing panels, deliver infrared energy from every direction. Far infrared waves penetrate deep into tissue and cells. This helps relieve sore muscles, increase range of motion, reduce spasms, and lower pain. The front heaters are the key differentiator from the the entry model, which only heats from the sides and back.

Full Spectrum Heater Technology

The Medical 4's heaters emit near-infrared, mid-infrared, and far-infrared wavelengths simultaneously. Near-infrared targets skin and surface tissue. Mid-infrared penetrates into soft tissue and joints. Far-infrared raises core body temperature for cardiovascular and detox benefits. Most budget saunas only offer a single wavelength. Full spectrum coverage means you get the widest range of therapeutic effects in every session.

The Detox Routine™

Sustained infrared heat opens pores and drives out accumulated toxins: BPA from household plastics, heavy metals, phthalates from processed foods, and nicotine. Following the Detox Routine™ protocol with consistent daily sessions delivers a level of detoxification that surface-heat saunas cannot match.

Safe Cool Down System™

After a session, the cabin's airflow design releases heat gradually. Your body cools at a safe, controlled pace instead of the abrupt temperature drop you get with poorly designed saunas. This reduces dizziness risk and supports healthy recovery.

Insulated Airflow System™

The Medical 4's double-wall insulation keeps cabin temperature consistent with minimal energy draw. Once it reaches operating temperature, the heaters cycle less frequently, keeping electricity costs lower during long sessions.

Who Is the Medical 4 Full Spectrum Sauna For?

The Medical 4 sits between the compact the entry model and the wider Medical 5. It fits you if:

  • You want space for 1-2 people (solo use with room to move, or side-by-side with a partner)
  • You want front-facing heaters for full-body coverage, particularly chest and thigh therapy
  • You value quiet operation for meditation, reading, or music during sessions
  • You still want a standard 120V/15A plug with no electrician needed
  • You have a space at least 48″ wide and 42″ deep
  • You plan to use the sauna daily for pain management, recovery, or detox

Too big? The Medical 3 fits one person in a 39″ × 36″ footprint on the same 120V plug. Need more room? The Medical 5 fits 2-3 people with 9 heaters, but requires a 120V/35A circuit (two plugs).

Designed and Built in the USA

Medical Saunas™ are designed, developed, and hand-assembled at the company's Los Angeles factory. The team works directly with medical doctors, cardiologists, and pain specialists at every stage. No outsourced manufacturing. Every unit ships direct from LA.

Backed by Documented Medical Research

Medical Saunas™ only lists health benefits supported by published clinical studies. The Medical Sauna Series™ took 10 years to develop with input from 48 medical professionals. Each feature was chosen for its measured health impact. Daily infrared sauna use has been studied for cardiovascular support, immune function, pain reduction, and full-body detoxification.

Medical Sauna Series™ Full Feature Comparison

Feature / Spec Medical 3™ Medical 4™ Medical 5™ Medical 6™ Medical 7 Plus™
Hot/Cold Cleansing System™
Detox Routine™
Insulated Airflow System™
3D Heat Therapy™
Safe Cool Down System™
Skin Rejuvenation/Cleansing System™
Natural Hemlock Wooden Construction
Simple Touch LED Control Panel™
Clasp-Together Assembly
Roof Vent
Tempered Glass Door
Speaker System with MP3 Connection
Ultra Full Spectrum Red Light Heaters™
Energy Efficient Heating System™
Rapid Internal Heating System™
Bluetooth Functionality
Mood Lighting™
3D Surround Heat with 2 Front Heaters
Chromatic Therapy System™
Deep Bench Seating for Extra Comfort
Interior Reading Light System™
Silent Heating System™
Long Enough to Lay Down
Color Light Therapy
Full Spectrum Heaters™ (2X Faster)
15% Thicker Glass & Wood Panels
Built-in Backrest
Audio Theater System™
Omni-Directional Heating™
Executive Corner Unit Design
Extra-Insulated Airflow System™
Extra-Rapid Internal Heating System™
SPECIFICATIONS
Capacity 1 person 1-2 people 2-3 people 3-4 people 4-6 people
Heaters 6 6 9 11 13
Interior (W×D×H) 36″×32″×66.5″ 44″×38″×69″ 57″×37″×69″ 67″×38″×69″ 62″×62″×69″
Exterior (W×D×H) 39″×36″×73″ 48″×42″×75″ 63″×42″×75″ 71″×42″×77″ 66″×66″×77″
Operating Voltage 120V/15A 120V/15A 120V/35A 120V/35A 220V/30A
Plug Type 1×15A 1×15A 15A + 20A 15A + 20A 1×220V/30A
Watts 1,500W 1,700W 2,600W 3,100W 4,100W
Weight 321 lbs 405 lbs 505 lbs 612 lbs 724 lbs
Medical 3™ You’re here Medical 5™ Medical 6™ Medical 7 Plus™

Shipping and Warranty

Free Curbside Shipping

Ships within 5 business days. Delivered curbside at no charge. White glove technician assembly available at checkout (no stairs +$899 / with stairs +$999).

3-Year Warranty Included

Covers labor, parts, and structure at no extra cost. Extended warranty add-ons: 1-year (+$750) or 2-year (+$1,500) available at checkout.

Medical 4 Sauna: Frequently Asked Questions

Does the Medical 4 infrared sauna need special wiring?

No. It runs on a standard 120V/15A household outlet with a 1-120VAC/15AMP plug. No electrician or dedicated circuit required. The Medical 4 is the largest model in the Medical Sauna Series that still uses a standard outlet. The Medical 5 and above need higher amperage circuits.

How many people fit in the Medical 4 sauna?

The Medical 4 fits 1-2 people. The interior is 44 inches wide and 38 inches deep with a deep bench seat. One person sits very comfortably with room to spare. Two adults can sit side-by-side, though it may feel snug for larger individuals.

What does "full spectrum" mean in the Medical 4 sauna?

Full spectrum means the heaters emit three types of infrared wavelengths at once. Near-infrared targets skin and surface tissue. Mid-infrared reaches soft tissue and joints. Far-infrared penetrates deepest, raising core body temperature for cardiovascular and detox benefits. Most budget saunas only produce far-infrared. Full spectrum gives you the widest therapeutic range per session.

What is the difference between the Medical 3 and Medical 4?

The Medical 4 adds five features not found on the the entry model: two front-facing heaters for full 3D surround heat, deep bench seating, a silent heating system, an interior reading light, and chromatic therapy. It is also wider (48 x 42 inches exterior vs 39 x 36), runs at 1,700W vs 1,500W, and weighs 405 lbs vs 321 lbs. Both use a standard 120V/15A plug. Choose the the entry model for tight spaces and solo use. Choose the Medical 4 for fuller body coverage and room for two.

What is a medical sauna?

A medical sauna is an infrared sauna engineered by healthcare professionals to deliver measurable therapeutic benefits. The Medical Sauna Series by Medical Saunas was developed over 10 years with input from 48 doctors, pain specialists, and cardiologists. Every feature targets documented health outcomes: pain relief, improved cardiovascular function, detoxification, immune support, and better sleep. It differs from standard infrared saunas in that each component is selected based on clinical research, not marketing appeal.

How long does the Medical 4 take to heat up?

About 40 minutes to reach full operating temperature. Most competing infrared saunas take 90 minutes to 2 hours. The Rapid Internal Heating System means you spend more time in the sauna and less time waiting.

Can I assemble the Medical 4 myself?

Yes. It uses a clasp-together design with no tools required. Two people are recommended since the unit weighs 405 lbs total. Professional white glove installation is available at checkout if you prefer not to do it yourself.

How much space do I need for the Medical 4?

The exterior footprint is 48 inches wide, 42 inches deep, and 75 inches tall. Add a few inches on each side for airflow and access. It fits comfortably in a spare bedroom, large closet, garage, or basement. The standard ceiling height requirement is just over 6 feet 3 inches.

Can you use an infrared sauna with a pacemaker?

This is a question for your cardiologist. Infrared saunas produce heat, not electromagnetic interference, so they differ from traditional EMF concerns with pacemakers. However, the heat itself raises heart rate and affects blood pressure. Medical Saunas recommends consulting your doctor before using any sauna if you have a pacemaker or other implanted cardiac device.

Are medical saunas available for wholesale or medical practices?

Yes. RecovAthlete serves both individual buyers and B2B customers including gyms, clinics, medspas, and wellness centers. For wholesale pricing or multi-unit orders, call 866-861-6317 or email [email protected] to speak with a specialist.

Is the Medical 4 sauna safe to use every day?

Yes. The Medical Sauna Series is designed for daily use. It features low EMF emissions, a Safe Cool Down System for gradual post-session recovery, and adjustable temperature controls. Consult your healthcare provider for personalized guidance on session length and frequency.

BEST FOR:

1-2 person home sauna

Fits two adults side by side. Chromatic therapy adds color light benefits on top of full spectrum infrared.

Couples wanting shared infrared therapy

Daily sessions together. No taking turns. Both occupants get full heater coverage.

Single-outlet convenience

120V/15A. Same standard outlet as the Medical 3 but with room for a second person.

Upgrade from the Medical 3

Same 6 heaters, larger cabin, chromatic therapy added. The next step up without changing your electrical.

NOT IDEAL FOR:

Not for 3+ people. For 2-3 people with lay-down interior, see the Medical 5. For couples wanting Ultra heaters, see the Medical 6 Ultra.

Financing Options Available

We work with four financing partners so you can spread the cost over time. Apply with more than one to compare offers.

Brickhouse Capital

Up to $250K, one-page app. Approval in 24 hours. Lease or EFA options.

Reliant Capital

Up to $500K app-only. 3-24 month deferred payments. 2-4 hour approvals.

Acorn Finance

30+ lenders, one app. Prequalify in 60 seconds. Terms up to 12 years.

KWIPPED (APPROVE)

Lenders compete for your deal. Up to 3 offers. 12-60 month terms.

Visit our financing page to apply, or call 866-861-6317.

Compare All Medical Infrared Sauna Models

Not sure which model fits? Compare every medical infrared sauna side by side.

Model Capacity Key Feature Power Price Link
Medical 3 1 Person 6 heaters, entry-level 120V $3,449 View
Medical 4 (You are here) 1-2 Person 6 heaters + chromatic therapy 120V $5,499 Current
Medical 5 2-3 Person 9 heaters, lay-down interior 120V $7,449 View
Medical 5 Ultra 1 Person Ultra full-spectrum, hot yoga 120V $7,599 View
Medical 6 3-4 Person 11 heaters, audio theater 120V $9,499 View
Medical 6 Ultra 2 Person Ultra full-spectrum, hot yoga 120V $9,599 View
Medical 6 Plus 6 Person Extended capacity infrared 120V $12,649 View
Medical 7 Plus 4-6 Person 13 heaters, corner flagship 220V $12,449 View
Medical 7 Ultra 3 Person Ultra full-spectrum, hot yoga 120V $12,599 View
Medical 8 Plus 4 Person Premium infrared, full features 220V $15,849 View
Medical 8 Plus Ultra 3-6 Person V2 ultra, hot yoga compatible 220V $15,599 View
Medical 9 Plus Hybrid 6 Person Infrared + steam dual mode 220V $15,899 View

Prices shown are current sale prices. Call 866-861-6317 for volume pricing or bundle deals.

Cancellation of Order

  • Within 24 Hours: You can cancel your order within 24 hours of placement.
    • Before Shipping: If cancelled before shipping, a 3% credit card transaction fee applies.
    • After 24 Hours: Cancellations post 24 hours will incur outbound and return shipping costs.

7-Day Return Policy

  • Initiating a Return: Contact us within 7 days of receiving your sauna to request a return merchandise authorization number.
  • Condition for Return:
    • Original Condition: Items must be unopened and in original packaging.
    • Written Authorization: A prior written return authorization is necessary.
    • Packaging Responsibility: Customers must ensure the sauna is in its original packaging for return.
    • Freight and Restocking: Customers are responsible for return freight shipping and a 20% restocking fee.
  • Cancellation Post-Shipping:
    • Charges: If cancelled after shipping, actual outbound and return shipping costs will be charged.
    • Before Shipping: A 3% credit card transaction fee applies if cancelled before shipping.
  • Refund Process:
    • Inspection Required: Refunds are issued post-inspection of the returned sauna.
    • Resalable Condition: Items must be in resalable condition with all documentation, returned within 30 days of RMA issue.

Product: Medical 4 Full Spectrum Infrared Sauna by Medical Saunas™

Type: Indoor full spectrum infrared sauna for home use

Capacity: 1-2 people

Price range: Check current sale price above

Key fact: Designed by 48 doctors over 10 years. 6 heaters including 2 front-facing panels for 3D surround heat. Plugs into a standard 120V household outlet. Features silent heating, deep bench seating, interior reading light, and chromatic therapy not found in the smaller Medical 3. Built with Canadian hemlock in Los Angeles, CA.

Medical 4 Full Spectrum Infrared Sauna: 1-2 Person, Doctor-Designed

The Medical 4 is the step up from the entry-level Medical 3. It fits 1-2 people comfortably and adds features the smaller model lacks: two front-facing heaters for full 3D surround heat, deep bench seating, a silent heating system, chromatic therapy, and an interior reading light. It was engineered by a team of 48 doctors, pain specialists, and cardiologists over a decade of research.

Like the Medical 3, it runs on a standard 120V/15A household outlet. No electrician, no special wiring. But the wider cabin (48″ × 42″ exterior vs 39″ × 36″) gives you room to stretch during solo sessions or sit beside a partner. It heats up in roughly 40 minutes and delivers therapeutic infrared energy from all directions.

Doctor Recommended Full Spectrum Heaters Handcrafted in USA 3-Year Warranty 120V Plug & Play Silent Heating 1-2 Person

Medical 4 Sauna Specifications

Capacity 1-2 People
Heaters 6 Ultra Full Spectrum Red Light Heaters™ (includes 2 front-facing panels)
Interior Dimensions (W×D×H) 44″ × 38″ × 69″
Exterior Dimensions (W×D×H) 48″ × 42″ × 75″
Operating Voltage 120V / 15 Amp
Plug Type 1-120VAC / 15AMP (standard household outlet)
Wattage 1,700W
Weight 405 lbs
Construction Natural Canadian Hemlock Wood
Assembly Clasp-together, no tools needed (2 people recommended)
Door Tempered Glass
Warranty 3 Years (Labor + Parts + Structure) included free

What’s Included

6 Ultra Full Spectrum Red Light Heaters 3D Surround Heat with 2 Front Heaters Rapid Internal Heating System™ 3D Heat Therapy™ Hot/Cold Cleansing System™ The Detox Routine™ Safe Cool Down System™ Insulated Airflow System™ Skin Rejuvenation System™ Silent Heating System™ Deep Bench Seating Interior Reading Light System™ Chromatic Therapy System™ Energy Efficient Heating System™ LED Control Panel™ Mood Lighting™ Bluetooth Speaker System MP3 Connection Roof Vent Tempered Glass Door

Medical 4 vs the entry model: What the Upgrade Gets You

Both share the same core Medical Sauna™ therapy systems. The Medical 4 adds five features that make longer daily sessions more comfortable and more effective:

3D Surround Heat with 2 Front Heaters — The the entry model heats from the sides and back only. The Medical 4 adds two front-facing panels that reach your chest, abdomen, and thighs directly. More uniform coverage means faster, deeper heating across the full body.

Deep Bench Seating — Wider, deeper bench for 30-45 minute sessions without pressure points. Matters a lot for daily use.

Silent Heating System™ — Quieter heater design. If you meditate, read, or listen to music during sessions, you won't hear the heaters cycling on and off.

Interior Reading Light System™ — A dedicated light inside the cabin. Useful if you sauna in a dimly lit room or want to read during sessions.

Chromatic Therapy System™ — Color light therapy that cycles through wavelengths studied for mood, skin health, and relaxation benefits. Both models have mood lighting, but only the Medical 4 adds this dedicated therapy mode.

Medical 4 Infrared Sauna Features

Natural Hemlock Wood Construction

Built with natural Canadian hemlock, selected after years of testing for its strength and health properties. Hemlock hardens with age, making the sauna more durable over time. Its natural astringent qualities help cleanse skin during sessions, complementing the infrared detox effect. The wood puts off a clean, natural scent when heated.

Rapid Internal Heating System™

Most infrared saunas need 90 minutes to 2 hours to preheat. The Medical 4 reaches full temperature in about 40 minutes. You get more therapeutic time per session, lower electricity draw, and the ability to do hot/cold therapy rounds. Step out, cool down, return to a fully heated cabin within minutes. The rapid heat-up also simulates the body's response to exercise, boosting heat tolerance and immune function over time.

3D Heat Therapy™ with Front Heaters

Six heaters positioned around the cabin, including two front-facing panels, deliver infrared energy from every direction. Far infrared waves penetrate deep into tissue and cells. This helps relieve sore muscles, increase range of motion, reduce spasms, and lower pain. The front heaters are the key differentiator from the the entry model, which only heats from the sides and back.

Full Spectrum Heater Technology

The Medical 4's heaters emit near-infrared, mid-infrared, and far-infrared wavelengths simultaneously. Near-infrared targets skin and surface tissue. Mid-infrared penetrates into soft tissue and joints. Far-infrared raises core body temperature for cardiovascular and detox benefits. Most budget saunas only offer a single wavelength. Full spectrum coverage means you get the widest range of therapeutic effects in every session.

The Detox Routine™

Sustained infrared heat opens pores and drives out accumulated toxins: BPA from household plastics, heavy metals, phthalates from processed foods, and nicotine. Following the Detox Routine™ protocol with consistent daily sessions delivers a level of detoxification that surface-heat saunas cannot match.

Safe Cool Down System™

After a session, the cabin's airflow design releases heat gradually. Your body cools at a safe, controlled pace instead of the abrupt temperature drop you get with poorly designed saunas. This reduces dizziness risk and supports healthy recovery.

Insulated Airflow System™

The Medical 4's double-wall insulation keeps cabin temperature consistent with minimal energy draw. Once it reaches operating temperature, the heaters cycle less frequently, keeping electricity costs lower during long sessions.

Who Is the Medical 4 Full Spectrum Sauna For?

The Medical 4 sits between the compact the entry model and the wider Medical 5. It fits you if:

  • You want space for 1-2 people (solo use with room to move, or side-by-side with a partner)
  • You want front-facing heaters for full-body coverage, particularly chest and thigh therapy
  • You value quiet operation for meditation, reading, or music during sessions
  • You still want a standard 120V/15A plug with no electrician needed
  • You have a space at least 48″ wide and 42″ deep
  • You plan to use the sauna daily for pain management, recovery, or detox

Too big? The Medical 3 fits one person in a 39″ × 36″ footprint on the same 120V plug. Need more room? The Medical 5 fits 2-3 people with 9 heaters, but requires a 120V/35A circuit (two plugs).

Designed and Built in the USA

Medical Saunas™ are designed, developed, and hand-assembled at the company's Los Angeles factory. The team works directly with medical doctors, cardiologists, and pain specialists at every stage. No outsourced manufacturing. Every unit ships direct from LA.

Backed by Documented Medical Research

Medical Saunas™ only lists health benefits supported by published clinical studies. The Medical Sauna Series™ took 10 years to develop with input from 48 medical professionals. Each feature was chosen for its measured health impact. Daily infrared sauna use has been studied for cardiovascular support, immune function, pain reduction, and full-body detoxification.

Medical Sauna Series™ Full Feature Comparison

Feature / Spec Medical 3™ Medical 4™ Medical 5™ Medical 6™ Medical 7 Plus™
Hot/Cold Cleansing System™
Detox Routine™
Insulated Airflow System™
3D Heat Therapy™
Safe Cool Down System™
Skin Rejuvenation/Cleansing System™
Natural Hemlock Wooden Construction
Simple Touch LED Control Panel™
Clasp-Together Assembly
Roof Vent
Tempered Glass Door
Speaker System with MP3 Connection
Ultra Full Spectrum Red Light Heaters™
Energy Efficient Heating System™
Rapid Internal Heating System™
Bluetooth Functionality
Mood Lighting™
3D Surround Heat with 2 Front Heaters
Chromatic Therapy System™
Deep Bench Seating for Extra Comfort
Interior Reading Light System™
Silent Heating System™
Long Enough to Lay Down
Color Light Therapy
Full Spectrum Heaters™ (2X Faster)
15% Thicker Glass & Wood Panels
Built-in Backrest
Audio Theater System™
Omni-Directional Heating™
Executive Corner Unit Design
Extra-Insulated Airflow System™
Extra-Rapid Internal Heating System™
SPECIFICATIONS
Capacity 1 person 1-2 people 2-3 people 3-4 people 4-6 people
Heaters 6 6 9 11 13
Interior (W×D×H) 36″×32″×66.5″ 44″×38″×69″ 57″×37″×69″ 67″×38″×69″ 62″×62″×69″
Exterior (W×D×H) 39″×36″×73″ 48″×42″×75″ 63″×42″×75″ 71″×42″×77″ 66″×66″×77″
Operating Voltage 120V/15A 120V/15A 120V/35A 120V/35A 220V/30A
Plug Type 1×15A 1×15A 15A + 20A 15A + 20A 1×220V/30A
Watts 1,500W 1,700W 2,600W 3,100W 4,100W
Weight 321 lbs 405 lbs 505 lbs 612 lbs 724 lbs
Medical 3™ You’re here Medical 5™ Medical 6™ Medical 7 Plus™

Shipping and Warranty

Free Curbside Shipping

Ships within 5 business days. Delivered curbside at no charge. White glove technician assembly available at checkout (no stairs +$899 / with stairs +$999).

3-Year Warranty Included

Covers labor, parts, and structure at no extra cost. Extended warranty add-ons: 1-year (+$750) or 2-year (+$1,500) available at checkout.

Medical 4 Sauna: Frequently Asked Questions

Does the Medical 4 infrared sauna need special wiring?

No. It runs on a standard 120V/15A household outlet with a 1-120VAC/15AMP plug. No electrician or dedicated circuit required. The Medical 4 is the largest model in the Medical Sauna Series that still uses a standard outlet. The Medical 5 and above need higher amperage circuits.

How many people fit in the Medical 4 sauna?

The Medical 4 fits 1-2 people. The interior is 44 inches wide and 38 inches deep with a deep bench seat. One person sits very comfortably with room to spare. Two adults can sit side-by-side, though it may feel snug for larger individuals.

What does "full spectrum" mean in the Medical 4 sauna?

Full spectrum means the heaters emit three types of infrared wavelengths at once. Near-infrared targets skin and surface tissue. Mid-infrared reaches soft tissue and joints. Far-infrared penetrates deepest, raising core body temperature for cardiovascular and detox benefits. Most budget saunas only produce far-infrared. Full spectrum gives you the widest therapeutic range per session.

What is the difference between the Medical 3 and Medical 4?

The Medical 4 adds five features not found on the the entry model: two front-facing heaters for full 3D surround heat, deep bench seating, a silent heating system, an interior reading light, and chromatic therapy. It is also wider (48 x 42 inches exterior vs 39 x 36), runs at 1,700W vs 1,500W, and weighs 405 lbs vs 321 lbs. Both use a standard 120V/15A plug. Choose the the entry model for tight spaces and solo use. Choose the Medical 4 for fuller body coverage and room for two.

What is a medical sauna?

A medical sauna is an infrared sauna engineered by healthcare professionals to deliver measurable therapeutic benefits. The Medical Sauna Series by Medical Saunas was developed over 10 years with input from 48 doctors, pain specialists, and cardiologists. Every feature targets documented health outcomes: pain relief, improved cardiovascular function, detoxification, immune support, and better sleep. It differs from standard infrared saunas in that each component is selected based on clinical research, not marketing appeal.

How long does the Medical 4 take to heat up?

About 40 minutes to reach full operating temperature. Most competing infrared saunas take 90 minutes to 2 hours. The Rapid Internal Heating System means you spend more time in the sauna and less time waiting.

Can I assemble the Medical 4 myself?

Yes. It uses a clasp-together design with no tools required. Two people are recommended since the unit weighs 405 lbs total. Professional white glove installation is available at checkout if you prefer not to do it yourself.

How much space do I need for the Medical 4?

The exterior footprint is 48 inches wide, 42 inches deep, and 75 inches tall. Add a few inches on each side for airflow and access. It fits comfortably in a spare bedroom, large closet, garage, or basement. The standard ceiling height requirement is just over 6 feet 3 inches.

Can you use an infrared sauna with a pacemaker?

This is a question for your cardiologist. Infrared saunas produce heat, not electromagnetic interference, so they differ from traditional EMF concerns with pacemakers. However, the heat itself raises heart rate and affects blood pressure. Medical Saunas recommends consulting your doctor before using any sauna if you have a pacemaker or other implanted cardiac device.

Are medical saunas available for wholesale or medical practices?

Yes. RecovAthlete serves both individual buyers and B2B customers including gyms, clinics, medspas, and wellness centers. For wholesale pricing or multi-unit orders, call 866-861-6317 or email [email protected] to speak with a specialist.

Is the Medical 4 sauna safe to use every day?

Yes. The Medical Sauna Series is designed for daily use. It features low EMF emissions, a Safe Cool Down System for gradual post-session recovery, and adjustable temperature controls. Consult your healthcare provider for personalized guidance on session length and frequency.

BEST FOR:

1-2 person home sauna

Fits two adults side by side. Chromatic therapy adds color light benefits on top of full spectrum infrared.

Couples wanting shared infrared therapy

Daily sessions together. No taking turns. Both occupants get full heater coverage.

Single-outlet convenience

120V/15A. Same standard outlet as the Medical 3 but with room for a second person.

Upgrade from the Medical 3

Same 6 heaters, larger cabin, chromatic therapy added. The next step up without changing your electrical.

NOT IDEAL FOR:

Not for 3+ people. For 2-3 people with lay-down interior, see the Medical 5. For couples wanting Ultra heaters, see the Medical 6 Ultra.

Financing Options Available

We work with four financing partners so you can spread the cost over time. Apply with more than one to compare offers.

Brickhouse Capital

Up to $250K, one-page app. Approval in 24 hours. Lease or EFA options.

Reliant Capital

Up to $500K app-only. 3-24 month deferred payments. 2-4 hour approvals.

Acorn Finance

30+ lenders, one app. Prequalify in 60 seconds. Terms up to 12 years.

KWIPPED (APPROVE)

Lenders compete for your deal. Up to 3 offers. 12-60 month terms.

Visit our financing page to apply, or call 866-861-6317.

Compare All Medical Infrared Sauna Models

Not sure which model fits? Compare every medical infrared sauna side by side.

Model Capacity Key Feature Power Price Link
Medical 3 1 Person 6 heaters, entry-level 120V $3,449 View
Medical 4 (You are here) 1-2 Person 6 heaters + chromatic therapy 120V $5,499 Current
Medical 5 2-3 Person 9 heaters, lay-down interior 120V $7,449 View
Medical 5 Ultra 1 Person Ultra full-spectrum, hot yoga 120V $7,599 View
Medical 6 3-4 Person 11 heaters, audio theater 120V $9,499 View
Medical 6 Ultra 2 Person Ultra full-spectrum, hot yoga 120V $9,599 View
Medical 6 Plus 6 Person Extended capacity infrared 120V $12,649 View
Medical 7 Plus 4-6 Person 13 heaters, corner flagship 220V $12,449 View
Medical 7 Ultra 3 Person Ultra full-spectrum, hot yoga 120V $12,599 View
Medical 8 Plus 4 Person Premium infrared, full features 220V $15,849 View
Medical 8 Plus Ultra 3-6 Person V2 ultra, hot yoga compatible 220V $15,599 View
Medical 9 Plus Hybrid 6 Person Infrared + steam dual mode 220V $15,899 View

Prices shown are current sale prices. Call 866-861-6317 for volume pricing or bundle deals.

WARRANTY AT A GLANCE
  • Duration: 3 years from date of receipt
  • Coverage: Defects in materials and workmanship under residential use
  • Parts: Covered under warranty
  • Service / labor costs: Not included in the 3-year warranty
  • Misuse or negligence: Not covered
  • Who to contact: RecovAthlete — 866-861-6317

What the Warranty Covers

The Medical Breakthrough series of massage chairs are warranted against defects in materials and workmanship under typical residential use for a period of three (3) years from the date of receipt by the original end-user consumer.

This is a parts warranty. Replacement parts for covered defects are provided at no charge during the warranty period. Service and labor costs are not included and would be charged separately if a technician visit is required.

What Is Not Covered

NOT COVERED:
  • Damage caused by misuse or negligence
  • Damage from commercial or non-residential use
  • Normal wear over time
  • Damage caused during customer-arranged delivery or setup
  • Service and labor costs — these are billed separately regardless of warranty status

Who This Warranty Applies To

This warranty applies to the original end-user consumer purchasing for personal, residential use. It is non-transferable. Chairs used in commercial environments — health clubs, clinics, spas, or any multi-user setting — are not covered under the residential warranty terms. Contact us at 866-861-6317 before purchasing for commercial use to discuss coverage options.

How to Make a Warranty Claim

If your Medical Breakthrough massage chair develops a defect covered under warranty, follow these steps:

  1. Call RecovAthlete at 866-861-6317 to report the issue
  2. Our team will gather details and diagnose the problem — many issues are resolvable without a parts replacement
  3. If a covered part needs replacing, we will coordinate the claim and delivery of the replacement part
  4. If a technician visit is required, we will advise on the service cost before any work is arranged
IMPORTANT: SERVICE COSTS

The 3-year warranty covers the cost of replacement parts only. If a technician is needed to install parts or diagnose an issue on-site, those service and labor fees are billed separately and are not covered by the warranty. We will always provide a cost estimate before any technician work is scheduled.

Warranty — Frequently Asked Questions

How long is the Medical Breakthrough massage chair warranty?

3 years from the date you receive the chair. The warranty applies to the original purchaser only and covers defects in materials and workmanship under normal residential use.

Does the warranty cover labor and technician visits?

No. The warranty covers replacement parts only. If a technician visit is required, service and labor costs are billed separately. We will provide a cost estimate before any work is scheduled.

Does the warranty cover damage from an accident or misuse?

No. Damage caused by misuse, negligence, or accidents is not covered. The warranty applies to manufacturing defects only.

Can I transfer the warranty if I sell the chair?

No. The warranty applies to the original end-user consumer only and is non-transferable.

Is the warranty valid for commercial use?

No. The residential warranty does not apply to chairs used in commercial environments such as health clubs, clinics, or spas. Contact us at 866-861-6317 before purchasing for commercial use to discuss available coverage options.

How do I make a warranty claim?

Call RecovAthlete at 866-861-6317. We will diagnose the issue, confirm warranty eligibility, and arrange for any covered replacement parts. If a technician visit is needed, we will give you a service cost estimate first.

Warranty questions or need service support?

Call RecovAthlete first — we'll diagnose the issue and coordinate from there.

Call 866-861-6317

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