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Save Up to 40% on Infrared Saunas + Free Shipping
Est. 1989 35 Years of Infrared Excellence
Verified Reviews ★★★★★ 4.9 · 2,000+ Reviews
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Infrared Specialists 35+ Years of Infrared Engineering
Verified Reviews ★★★★★ 4.9 · 2,000+ Reviews
Shipping Free on Every Order
Financing 0% APR with Affirm*
HSA / FSA Accepted · Pay with Truemed

Full Spectrum Infrared Saunas

JNH Lifestyles full-spectrum infrared saunas bring near, mid, and far infrared together in one sauna. Carbon-fiber heaters provide broad, even heat throughout the cabin, while precision LED emitters deliver targeted near-infrared wavelengths without relying on the halogen or quartz heaters commonly used in full-spectrum systems.

The collection includes Tosi, Tosi 360°, Arki, and Arki Outdoor, with options ranging from gentler infrared heat up to 140°F to high-heat models reaching up to 170°F. Depending on the model, you can also choose from different cabin sizes and woods, ultra-low EMF designs, 360° infrared coverage, red light therapy, and indoor or fully outdoor configurations.

With JNH, full spectrum is more than a wavelength label. It’s a thoughtfully engineered infrared experience with options built around how, where, and at what heat level you want to sauna.

JNH Lifestyles full-spectrum infrared saunas bring near, mid, and far infrared together in one sauna. Carbon-fiber heaters provide broad, even heat throughout the cabin, while precision LED emitters deliver targeted near-infrared wavelengths without relying on the halogen or quartz heaters commonly used in full-spectrum systems.

The collection includes Tosi, Tosi 360°, Arki, and Arki Outdoor, with options ranging from gentler infrared heat up to 140°F to high-heat models reaching up to 170°F. Depending on the model, you can also choose from different cabin sizes and woods, ultra-low EMF designs, 360° infrared coverage, red light therapy, and indoor or fully outdoor configurations.

With JNH, full spectrum is more than a wavelength label. It’s a thoughtfully engineered infrared experience with options built around how, where, and at what heat level you want to sauna.

Full Spectrum Sauna Technology & Performance

Full Spectrum vs. Far Infrared Saunas

Learn how full spectrum and far infrared saunas differ, including infrared wavelengths, heat delivery, and what to consider when choosing between them.

Compare Infrared Sauna Types

Infrared Sauna Temperature

Compare infrared sauna temperatures, including 140°F and 170°F, and learn how temperature range can affect your sauna experience.

Compare Sauna Temperatures

Infrared Sauna Engineering

See how JNH approaches heater design, heat distribution, materials, electrical architecture, and performance testing.

Explore JNH Engineering

Infrared Sauna EMF Levels & Testing

Learn how infrared sauna EMF is measured and review JNH’s independent testing methodology and results.

View EMF Testing

35+ Years of Infrared Sauna Experience

Learn about JNH Lifestyles, our history with infrared sauna technology, and the experience behind our sauna designs.

About JNH Lifestyles

Full Spectrum Infrared Sauna FAQ

 

What is a full-spectrum infrared sauna?

A full-spectrum infrared sauna combines near (NIR), mid (MIR), and far infrared (FIR) in one sauna. Far infrared provides the foundation for whole-body heat, while full-spectrum systems add near and mid infrared for broader infrared exposure during the same session.

What is the difference between a full-spectrum and far infrared sauna?

A far infrared sauna uses FIR as the primary wavelength for whole-body heat. A full-spectrum sauna starts with that same far-infrared foundation and adds near and mid infrared. The right choice depends on whether you primarily want an infrared heat experience or also want exposure to additional infrared wavelengths.

 

Is a full-spectrum infrared sauna better than far infrared?

Not necessarily. Far infrared can be a strong choice for people primarily looking for consistent whole-body heat, sweating, relaxation, and recovery. Full spectrum becomes more relevant when you want those same heat-based benefits along with targeted near-infrared exposure. The quality of the infrared delivery matters more than simply choosing the option with more wavelengths.

How does JNH Lifestyles deliver full-spectrum infrared?
JNH pairs carbon-fiber heaters with precision LED emitters. Carbon-fiber heaters provide broad, even far-infrared heat throughout the cabin, while LED emitters deliver targeted near-infrared wavelengths. This allows JNH full-spectrum systems to combine whole-body infrared heat with more precise wavelength delivery.

Why does JNH use LED emitters for near infrared?
LED emitters can deliver light within narrow, targeted wavelength ranges rather than producing broad-spectrum output across many wavelengths at once. JNH uses LED-based near-infrared delivery instead of relying on halogen or quartz heaters, pairing it with low-EMF carbon-fiber heating throughout its full-spectrum systems.

Are full-spectrum infrared and red light therapy the same thing?
No. Full spectrum describes a sauna that delivers near, mid, and far infrared, while red light therapy uses dedicated light emitters at specific wavelengths. Some JNH full-spectrum models also include red light therapy, but the two features are distinct and are not included on every model.

Do all JNH full-spectrum saunas reach the same temperature?
No. JNH offers different heat experiences within its full-spectrum collection. Some models are designed for classic, gentler infrared heat up to 140°F, while high-heat models can reach temperatures up to 170°F. This lets you choose full-spectrum infrared without being limited to one temperature range.

Which JNH full-spectrum sauna is right for me?
That depends on how you want to sauna. The JNH full-spectrum collection includes Tosi, Tosi 360°, Arki, and Arki Outdoor, with differences in heat range, cabin size, wood, infrared coverage, red light therapy, and indoor or outdoor use. Consider the heat experience, space, and features that matter most to you when comparing models.

Do all JNH full-spectrum saunas include 360° coverage or red light therapy?
No. These features vary by model. Select JNH full-spectrum saunas offer 360° infrared coverage, red light therapy, or both, while other models provide a more streamlined full-spectrum infrared experience. Checking the individual model specifications can help you choose the combination that fits your priorities.

Can a full-spectrum infrared sauna be used outdoors?
Yes, when the sauna is specifically engineered for outdoor use. Arki Outdoor combines full-spectrum infrared and red light therapy in an all-weather design intended for outdoor placement. Indoor full-spectrum models should be installed according to their specified placement requirements.

 

 

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