Arki™ Solo High-Heat 170°F 1-Person Full-Body 360° Medical-Grade Red Light Therapy Infrared Sauna

A 1-person red light therapy sauna combines the privacy and smaller footprint of a personal sauna with dedicated red and near-infrared light therapy. The Arki Solo goes further by surrounding one seated user with 360° medical-grade red light therapy and 360° full-spectrum infrared rather than delivering light or heat primarily from one direction.

Both systems are built into the cabin and can be used independently or together, giving one person the complete Arki dual-therapy experience in a personal-size sauna.

The Arki Solo brings Arki's 360° dual-therapy architecture into a dedicated 1-person cabin. It combines 360° full-spectrum infrared with 360° medical-grade red light therapy, surrounding the seated user with both technologies rather than relying on a single red light panel or directional exposure.

That means choosing a smaller sauna does not mean stepping down to a simplified red light system. The Solo is designed around the same defining Arki concept: simultaneous, full-body surround coverage from two distinct therapies.

No. The Solo changes the cabin capacity, not the fundamental Arki therapy design. Its 12 emitters are arranged around the personal-size cabin to maintain 360° Total Surround Coverage for the seated user.

For someone who primarily expects to sauna alone, the Solo provides the surrounding red light and full-spectrum infrared experience Arki is known for without requiring the additional footprint of a multi-person cabin.

The Arki Solo's red light therapy system uses dedicated red and near-infrared wavelengths designed for photobiomodulation rather than ambient colored lighting. At a normal seated distance, Arki's red light system is designed to provide approximately 40–60 mW/cm² of irradiance, with broad exposure around the body instead of concentrating the light on one small area.

This combination of measurable light output and 360° coverage is especially important in a personal sauna, where the system can be engineered around the position of a single seated user.

In the Arki Solo, “medical-grade” refers to the specifications and engineering of the dedicated red and near-infrared LED system, including controlled therapeutic wavelengths, measured light intensity, and full-body coverage. It distinguishes the system from chromotherapy or decorative red lighting, which is designed for ambiance rather than dedicated red light therapy.

The Arki Solo is intended for general wellness use and is not a medical device. It is not designed to diagnose, treat, cure, or prevent disease.

A 1-person infrared sauna may add red light through a single panel or limited group of LEDs positioned in one part of the cabin. The Arki Solo was designed around red light therapy and full-spectrum infrared as two complete systems.

Its medical-grade red light surrounds the seated user with 360° coverage while its full-spectrum infrared is also distributed around the cabin. Instead of sitting in front of a red light source, you sit within the therapy environment.

A standalone red light panel is designed to deliver concentrated light from one direction and generally requires you to position or reposition your body in front of it. The Arki Solo distributes medical-grade red light around the seated user while also providing a full-spectrum infrared sauna experience.

You can use the red light by itself, use infrared heat by itself, or run both together. A standalone panel can be useful for targeted exposure, while the Arki Solo is designed for someone who wants a seated, full-body red light experience combined with an infrared sauna.

Full-spectrum infrared means the Arki Solo provides near, mid, and far infrared rather than relying on far infrared alone. Its infrared emitters are distributed throughout the personal-size cabin to provide surrounding heat coverage while you remain seated.

This full-spectrum infrared system is separate from Arki's medical-grade red light therapy system, allowing the Solo to provide two distinct technologies within the same cabin.

The Arki Solo reaches temperatures up to 170°F, bringing high-heat performance to a compact 1-person red light therapy sauna. The temperature comes from the infrared heating system and can be adjusted based on how much heat you want from the session.

The red light therapy system operates separately, so choosing a higher or lower sauna temperature does not determine whether you can use the red light.

Yes. The Arki Solo lets you use red light therapy by itself, infrared heat by itself, or both systems together.

That flexibility is particularly useful in a personal sauna because the same cabin can support different types of sessions without requiring you to use maximum heat every time you want red light exposure.

The Arki Solo is engineered for ultra-low EMF/ELF performance. Third-party testing reports approximately 0.32 mG at the center of the carbon heating panel, with measurements decreasing farther from the source.

The low-EMF approach extends across the engineering of the sauna rather than requiring you to choose between full-spectrum operation, high heat, and low-EMF performance.

The Arki Solo measures approximately 35.5 inches wide, 35.5 inches deep, and 75 inches high, giving it a roughly 3-foot-square footprint. Inside, the cabin measures approximately 33 inches wide by 33 inches deep, with a 30-inch-wide bench.

This makes the Solo well suited to buyers who want a dedicated full-size sauna experience for one person without giving a larger multi-person cabin additional floor space.

The Arki Solo operates on 120V/15A power and draws approximately 1,850 watts. It uses a standard household-style plug, making its electrical requirements different from larger sauna models that may require higher-voltage service.

Before installation, confirm that the intended circuit can support the sauna's electrical load and follow the electrical requirements provided with the unit.

Choose the Arki Solo if the sauna will primarily be used by one person and you want the smallest Arki footprint without giving up 360° medical-grade red light therapy, full-spectrum infrared, or high-heat capability.

The Arki Duo is the better choice if two people will regularly use the sauna together or if you simply prefer additional interior room. Both are built around Arki's 360° dual-therapy concept; the main decision is how much cabin space and seating capacity you want.