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- Home
- Peak Fuji 2-Person Full Spectrum Infrared Sauna



Description
The Fuji is PEAK's best-selling sauna and the brand's two-person flagship. It is the largest indoor two-person full-spectrum infrared sauna on the market, so two adults sit in comfort. It is built in aromatic Canadian red cedar. If cedar scent bothers you, choose the Everest. It is the same sauna in hemlock.
Why Fuji owners use it every week
Regular sauna use is one of the most-studied longevity habits. A 20-year study of 2,315 men found that those who used a sauna 4–7 times a week had 40% lower all-cause mortality and 50% lower fatal cardiovascular disease than once-a-week users (Laukkanen et al., JAMA Internal Medicine, 2015). A follow-up reported a 65% lower rate of Alzheimer’s disease (Age and Ageing, 2017). A 15-year study of 1,688 men and women aged 53 to 74 found the same pattern. Those who used a sauna 4–7 times a week had 70% lower fatal cardiovascular disease than once-a-week users (Laukkanen et al., BMC Medicine, 2018). The benefit grew with frequency. That is the reason to own a sauna and not book one.
Owners also tell us they sleep better, move with less joint pain, see clearer skin and feel calmer.
“I honestly have spent years researching different saunas and trying to decide on a brand that had everything I wanted. It’s a huge purchase, so something to not just rush into! I could not be happier!”
Susan L., verified buyer
A big reason owners choose PEAK: the red light
PEAK pioneered the pairing of full-spectrum infrared and medical-grade red light in one sauna. Other brands now copy the look and sell it for less. Compare the panel before you compare the price.
- 8 wavelengths, not 1 or 2. Four red wavelengths (630, 650, 660 and 670nm) work at the skin: collagen, skin repair and circulation. Four near-infrared wavelengths (810, 830, 850 and 1060nm) reach deeper: joints, muscles and recovery. Most consumer panels use 1 or 2 wavelengths.
- 175 mW/cm² at 6 inches, and 80 at 24 inches. This number is the light power that reaches your skin. It decides if a session is therapy or decoration. At 24 inches, about where you sit, the panel still delivers 80. Many budget panels deliver 20 to 60.
- 216 dual-chip LEDs on a 9″ × 36″ panel. It is built into the front wall and runs from head height to shin height.
- Use it with the heat or without it. The red light runs on its own. Use it for a morning skin session or a sore knee, with the sauna off.
- Included, not extra. The panel is a $1,799 value. You do not buy a separate device.
The research on red light is strongest for skin. In a controlled trial of 136 volunteers, red and near-infrared light improved skin roughness and collagen density (Wunsch and Matuschka, Photomedicine and Laser Surgery, 2014).
“I have also seen a big improvement in my rosacea on my face by using the Red Light therapy.”
Kathi S., verified buyer
Ask any brand for two numbers: how many wavelengths, and the irradiance at the distance where you sit. If they do not publish them, the red light is lighting, not therapy.
Full-spectrum is not the same as far infrared
Some brands now sell far infrared saunas with a red light added and call them full-spectrum. They are not the same. Infrared has three bands, and each band does a different job.
- Far infrared: the sweat. It heats the whole body. It gives you the deep sweat and the heart workout that sauna research measures. Every infrared sauna has it.
- Mid infrared: muscles and joints. It is absorbed in soft tissue: muscle, joints and connective tissue. It is studied for circulation and muscle recovery. A far infrared sauna does not have it.
- Near infrared: skin and cell energy. It is absorbed in the skin and the tissue just under it. It is studied for skin health, wound healing and cellular energy. A far infrared sauna does not have it.
What you miss with far infrared only: the two bands studied for joints, muscle recovery, circulation and skin. You get the sweat. You miss the rest.
- Why far infrared saunas cost less. Carbon panels make far infrared only, and they cost much less to build. Near and mid infrared need halogen and quartz heaters. The Fuji has all three: carbon panels plus halogen and quartz heaters (700–25,000nm).
- A red light panel is light, not heat. It does not turn a far infrared sauna into a full-spectrum sauna.
Ask any brand what produces the near and mid infrared. If the answer is carbon panels only, the sauna is far infrared.
Why a PEAK is worth more
- Built for two, for real. At 53 inches wide and 44 inches deep, the Fuji is the largest indoor two-person full-spectrum infrared sauna on the market. Many two-person saunas feel cramped with two people inside.
- Add up what is included. A lower-priced sauna does not include a medical-grade panel or guided sessions. Add those costs to its price before you compare.
- Guided wellness, free for life. PEAK is the only sauna with guided wellness included free for life. Your PEAK Wellness Club membership gives you daily guided sessions, 30-day programs and an expert research library. It is a $588 per year value.
- Heat to 150°F. The Fuji reaches a max 150°F. Many infrared saunas stop at 140°F.
- Delivered in a wooden crate. PEAK is the only sauna brand that ships in a crate, not a cardboard box.
- A U.S.-based team for life. Call or text (470) 665-3747. You reach the brand's team, before and after you buy.
- Proof. More than 4,200 reviews. Rated 4.8 out of 5 on Google. More than 10,000 customers trust PEAK. NBC, ABC, FOX News, CBS and AP have featured us.
Will the Fuji work in your home?
- Size: 53″W × 44″D × 75″H outside. 49″W × 40″D × 67″H inside. 385 lbs.
- Fits in: Bedrooms, bathrooms and recovery rooms.
- Power: Needs a dedicated 120V/20A outlet. A standard 15A outlet is not enough. An electrician can add one.
- Assembly: Clasp-together panels. Two adults finish in about 2 hours.
- Delivery: Free threshold delivery. The carrier calls you to book a time, then brings the crate to your garage or front door.
- Heat-up: Allow 30 to 45 minutes to reach max temperature. Preheat it from your phone so you never have to wait.
- Controls: Set the temperature and session length in the app or on the touchscreen.
- Build: Hand-finished aromatic Canadian red cedar.
- Comfort: Two Bluetooth speakers, chromotherapy lighting, an oxygen ionizer that freshens the air, and a foot heater.
Ways to pay
- Credit card. They accept all major credit cards.
- HSA/FSA. Select “Pay with HSA/FSA” at checkout and pay with pre-tax dollars.
- Financing. Available through Bread Pay for qualified buyers.
Our promise
- Limited Lifetime Warranty and lifetime U.S.-based support.
- Parts and service. If a part fails, they send the replacement. In your first year, if they cannot solve a problem by phone, the warranty covers a technician visit.
- 30-day home trial. Assemble it, use it and decide. See the brand's refund policy for return terms.
Why start now
The research is about frequency. Every week you wait is a week of sessions you do not get back. In-stock saunas ship in 2 to 4 business days. Today's price and your delivery date are at the top of this page.
Order your Fuji today. Questions first? Call or text (470) 665-3747.
Product Details
Features
HEALTH BENEFITSOur Infrared saunas offer a wide range of scientifically supported health benefits. Unlike traditional saunas, infrared heat penetrates deeper into the body, heating you from the inside out and promoting enhanced detoxification, circulation, and relaxation.
Detoxification: Infrared saunas increase sweat production, helping eliminate toxins like heavy metals and chemicals. Studies show that infrared therapy can boost detoxification by up to 20% more than traditional saunas.
Improved Cardiovascular Health: Regular infrared sauna use has been shown to lower blood pressure, improve circulation, and reduce the risk of heart disease by 46%, according to a study published in JAMA.
Pain Relief & Muscle Recovery: Infrared heat helps reduce inflammation, alleviate pain, and accelerate muscle recovery. Clinical trials report that 70% of patients with chronic pain experienced relief with consistent infrared therapy.
Skin Health & Anti-Aging: Infrared saunas stimulate collagen production, improving skin elasticity and reducing wrinkles. Research shows an increase in skin hydration and a 26% reduction in wrinkles after regular use.
Stress Relief & Better Sleep: Infrared saunas promote relaxation by reducing cortisol levels, leading to better stress management and improved sleep quality. 83% of users report feeling more relaxed and sleeping better after sessions.
These benefits make our infrared saunas a powerful tool for overall wellness, helping you feel healthier inside and out.
Shipping & Returns
THIS PRODUCT IS NON-RETURNABLE
Please note, this product ships directly from Peak Saunas and will arrive separately if ordering additional items. Please reach out directly to Peak Saunas for more information or instruction.


















