The full-spectrum infrared sauna with the lowest EMF readings in the category - and the brand Jacuzzi acquired specifically because of its tech moat.
Price: $5,495–$9,295 · Verified: 2026-05-03 · Editor score: 9.0/10 (how we rank)
The full-spectrum infrared sauna with the lowest EMF readings in the category - and the brand Jacuzzi acquired specifically because of its tech moat.
Clearlight Sanctuary 2 is the sauna for buyers who care about two specific specs more than anything else: full-spectrum heater coverage and ultra-low EMF emissions. The True Wave heaters deliver near, mid, and far infrared simultaneously (similar to Sunlighten's Solocarbon), but Clearlight has been the EMF-leader benchmark for over a decade - typically reading under 1 mG at body level versus 3-5 mG on most competitors.
The Jacuzzi acquisition (2021) is what tipped the balance for many premium buyers. Pre-acquisition, Clearlight was a strong but smaller brand competing against Sunlighten on premium positioning. Post-acquisition, the warranty backing, dealer network, and parts-availability matched Sunlighten's, while preserving Clearlight's lifetime warranty (which Sunlighten doesn't match across the cabin).
The Sanctuary 2 specifically targets the 2-person buyer who wants more space than a Solo but isn't ready for a 3-4 person room. Configurations scale up to Sanctuary 5 for buyers wanting outdoor-capable or family-sized installs.
Where Sunlighten still wins: the research footprint. Mayo Clinic and peer-reviewed studies cite Sunlighten's Solocarbon technology specifically; Clearlight's True Wave hasn't accumulated the same academic citation base. For buyers who care about academic validation, that's a real point.
Where Clearlight wins: the EMF spec, the lifetime warranty, and the Jacuzzi-backed long-term support. For buyers in tight rooms (where EMF exposure adds up over hundreds of sessions) or those installing once for a 15-year horizon, Clearlight is the conservative-correct pick.
Buyers prioritizing ultra-low EMF, lifetime warranty, and Jacuzzi-backed long-term support - particularly those installing in smaller rooms where EMF accumulates.
You want Mayo Clinic-cited heater research (go Sunlighten), or you need outdoor installation (Sun Home Luminar is the better fit).
Pros
- True Wave full-spectrum heaters (near + mid + far IR)
- Industry-lowest EMF readings - typically under 1 mG at body level
- Lifetime warranty on cabin + heaters
- Jacuzzi-backed support and dealer network post-2021 acquisition
- Medical-grade chromotherapy lighting included
- Ergonomic backrest standard
- 1, 2, 3, and 5-person configurations
- HSA/FSA eligible
- Made in USA
Cons
- Premium pricing - Sanctuary 2 starts at $5,495
- Less academic research footprint than Sunlighten's Solocarbon
- Indoor-only (Outdoor models in separate Curve line)
- Cabin assembly takes 2-3 hours minimum
- Smart-features lighter than Sunlighten mPulse
Specifications
Most often compared with
Where this fits
Clearlight Saunas Sanctuary 2 cross-shops across several editorial surfaces on this site: the full brand catalog, the buyer-intent tags this item carries, the price band it qualifies for and the in-depth guides for its category.
Clearlight Saunas Sanctuary 2 - buyer FAQ
Clearlight vs Sunlighten - which one should I buy?
Clearlight wins on warranty (lifetime on both cabin and heaters), EMF readings (typically <1 mG vs Sunlighten's <2 mG), and price (Sanctuary 2 starts ~$5,495 vs Sunlighten mPulse 2-person ~$7-8K). Sunlighten wins on research depth (Mayo Clinic + peer-reviewed studies on Solocarbon heaters specifically) and smart-programming customization. For most buyers, Clearlight is the conservative correct pick. For users who want validated science + smart wavelength programs, Sunlighten justifies the premium.
What makes Clearlight's True Wave heaters different?
True Wave is Clearlight's proprietary heater technology that mixes carbon (long-wave far IR) + ceramic (mid-range) elements in a single panel. The benefit vs single-tech heaters is broader IR spectrum coverage at lower surface temperatures, which contributes to the low EMF readings. Sunlighten's Solocarbon is more researched; True Wave is less peer-reviewed but well-engineered.
Does the Jacuzzi acquisition matter for warranty / service?
Yes - in a good way. Clearlight was acquired by Jacuzzi Group in 2021, which means service and parts are now backed by one of the largest hot-tub and wellness-hardware distributors in the US. The dealer network is more extensive than pre-2021, and warranty claims are more likely to be honored 10+ years out. This is the structural advantage vs smaller infrared brands.
Is the chromotherapy lighting worth anything?
Medical-grade chromotherapy LED lights are included standard (most competitors charge extra). The science on chromotherapy for mood/recovery is weak, but the lights add ambiance and the integrated control is convenient. Treat it as a free aesthetic upgrade, not a therapeutic intervention.
Does Clearlight ship to my state?
Yes - all 50 US states + Canada. Jacuzzi's dealer network handles delivery and white-glove install if requested ($300-800 added depending on location). The Sanctuary cabins ship in modular panels that 2 people can install in 2-3 hours without specialty tools.
Clearlight Sanctuary 2 - Full-Spectrum Infrared Sauna
$5,495–$9,295 · Verified 2026-05-03
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