Infrared saunas, scored
You are shopping for a sauna and almost every box promises the same thing: "low EMF," the electromagnetic field the heaters give off, measured in milligauss (mG). Here is the one thing to hold onto. That promise only counts when a named outside lab measured it where you actually sit, not at the heater, and almost no brand can show that. The EMF column below is that honest line, and it is why so few saunas clear the top bands.
Read the bands carefully
If most saunas here land in Limited, do not read that as "bad sauna." It is a statement about evidence, not build quality. Their low-EMF claim simply is not yet verified at the seat by a named outside lab, and EMF is the dimension we weight most heavily. A Limited sauna can still be well built and a pleasure to sit in - it just has not proven the one number its marketing leans on hardest. So read Limited here as claim unverified at the seat, not bad sauna.
We do give credit for doing the homework. A brand that publishes a named lab report showing a low figure ranks above one waving a bare or unsourced claim, even if the meter was held at the heater rather than the seat. But that credit is capped on purpose: only an at-the-seat figure clears the top bands. See the methodology.
| Score | Sauna | EMF |
|---|---|---|
| 7.9 | Clearlight Sanctuary 1 | 0.8 mG verified |
| 7.8 | Clearlight Premier IS-1 | 0.8 mG verified |
| 5.8 | Sunlighten Amplify 1-Person | 1 mG unverified |
| 5.8 | Sunlighten mPulse Aspire | 1 mG unverified |
| 5.4 | JNH Lifestyles Joyous 2-Person | 0.32 mG unverified |
| 4.9 | Maxxus Seattle 2-Person | no figure |
| 4.5 | Dynamic Barcelona (DYN-6106-01) | 8 mG unverified |
| 4.1 | HigherDose Infrared Sauna Blanket V4 | 2.1 mG verified |
| 4.0 | LifePro RejuvaWrap | 2 mG unverified |
| 3.6 | Therasage Thera360 Plus | no figure |
| 3.3 | Sunlighten Solo System | no figure |
| 3.2 | SaunaSpace Luminati Cabin | no figure |
| 2.5 | Medical Saunas Medical 4 | 0.03 mG unverified |
| 2.2 | SaunaSpace Pocket Sauna | no figure |
| 2.2 | Sun Home Equinox 2-Person | 0.5 mG unverified |
| 0.6 | HigherDose Full Spectrum Sauna | no figure |
How we score infrared saunas
Start with the number every box promises and few brands prove. Almost every infrared sauna is sold as "low EMF," but that claim is only usable to you as a milligauss figure measured where you actually sit, by a named outside lab. A reading taken at the heater, an unsourced number, or a bare "low EMF" sticker gets capped and flagged. Because EMF is the dimension we weight most heavily, most saunas land in Limited. Read that as "the low-EMF claim is unproven where you sit," not "bad sauna."
The next thing to watch is the word "full spectrum," because it is often a far-infrared panel relabeled. We credit it only when the sauna actually carries a separate near-infrared emitter, not when the marketing just renames the panels you already have. From there we check for an electrical-safety listing and a clean recall record, and we hand partial, capped credit to a brand that documents a low outside-lab figure even off the seat. Every score is our opinion under a published rubric. See the methodology and the low-EMF guide. Building one into a yard? The backyard recovery station guide covers footprint, outdoor-rated electrical, and weatherproofing.
If this is your first sauna, you do not have to figure it out alone. Start with how to choose an infrared sauna, then read heater types explained and infrared vs traditional. Already eyeing one brand? See our scored alternatives to Sunlighten, Clearlight, and the HigherDose blanket.