What Is EMF in an Infrared Sauna?

Sauna EMF explained: what is emf in an infrared sauna

The listings show a clear split in how brands present their products. SALUSHEAT publishes a concrete range of 0 to 5 mG for its eight panels, and Lifepro states 0.1 to 0.2 uT for its carbon fiber wires. In contrast, SereneLife and Durasage advertise low EMF as a marketing label without providing any numeric measurement or benchmark on their sales pages. Every number here is the manufacturer’s listing claim rather than an independent laboratory verification.

Milligauss and microtesla units explained

In home appliances, the magnetic field portion of electromagnetic fields is commonly measured in terms of magnetic flux density. Listings for infrared saunas express these magnetic field readings in two units: milligauss (mG) and microteslas (uT). The mathematical conversion between the two units is direct: 1 microtesla equals 10 milligauss (1 uT = 10 mG). Meanwhile, SALUSHEAT states its rating directly in milligauss as 0 to 5 mG.

Electric saunas generate these fields because alternating current flows through electrical cords, control boxes, and heating elements. In an infrared cabin or blanket, carbon or ceramic heating elements produce far-infrared radiant warmth to heat the body directly, while the electrical wiring and heaters carrying alternating current generate low-frequency electric and magnetic fields. Our carbon vs ceramic infrared heaters guide and infrared vs traditional sauna comparison explain how different heating elements operate.

Where and how makers measure changes the reading

Magnetic field strength decreases rapidly as distance from the electrical conductor increases. A reading taken directly against a heating wire or panel surface can be substantially higher than a reading taken at bench distance in the center of the cabin. When a maker advertises a rating such as 0 to 5 mG or 0.1 to 0.2 uT, listings rarely specify the exact distance from the heating panel at which that reading was taken.

In an infrared blanket like the Lifepro RejuvaWrap, the user lies inside a 65-inch interior circumference in direct contact with the blanket fabric and internal wiring. In a wooden cabin like the SALUSHEAT KX-901BH or SereneLife SLISAU36WDBT, a user seated on the bench has greater separation from the wall panels than someone zipped inside a blanket.

Electrical load also determines installation requirements. The SALUSHEAT listing specifies 1460W and 15A on a 120-volt supply. Plugged into a standard 15-amp circuit, a 1460-watt draw uses most of the circuit capacity, requiring a dedicated line without shared appliances.

Low EMF infrared saunas compared

These are scored on the Chill Score, which weighs performance 35, build 25, value 25, safety certifications 10 where it applies and warranty 5. None of these four listings state a recognized electrical safety certification such as UL or ETL, so all four score 0 for safety.

Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.

For more choices, see our best portable infrared saunas roundup and our guide to sauna electrical requirements.

Using an infrared sauna in practice

• Maintain sensible distance. In a cabin, sit comfortably on the bench rather than leaning your back directly against the heater panels to increase distance from the wiring.
• Check your circuit capacity. A cabin like the SALUSHEAT is rated at 1460W and 15A, requiring a dedicated 15-amp line on a 120-volt circuit without shared appliances.
• Start below the maximum heat. SereneLife recommends a comfort range of 115 to 130 F, well below its 135 F operating limit, while SALUSHEAT ranges from 77 to 149 F.
• Follow the session timer in your manual. Lifepro provides a 5 to 60 minute timer; start with shorter sessions and follow your device instructions.
• Stay hydrated. Drink water before and after every session, and never enter a sauna after consuming alcohol.

Common mistakes

• Assuming low EMF means zero electromagnetic fields while alternating current powers the heaters.
• Comparing figures across listings without converting microteslas to milligauss (1 uT equals 10 mG).
• Assuming advertised field numbers apply directly on the panel surface when distance was not specified.
• Ignoring electrical requirements and plugging a 1460-watt cabin into an overloaded shared circuit.
• Confusing marketing descriptions like full-body wellness with verifiable safety listings.

Common questions

What is EMF in an infrared sauna?

EMF in an infrared sauna refers to low-frequency electric and magnetic fields produced by alternating current flowing through the unit’s wiring, controllers, and heating elements. Infrared heaters produce radiant warmth to heat your body directly, while the electrical components powering those heaters generate low-frequency fields as a byproduct of operation.

What is considered low EMF for an infrared sauna?

There is no single official regulatory standard that defines low EMF for home saunas. Brands use the phrase differently: SALUSHEAT publishes a 0 to 5 mG range, Lifepro claims 0.1 to 0.2 uT for its wires, and other brands provide no numeric measurement at all. Because these numbers are individual manufacturer claims, there is no universal cutoff across the category.

How do you convert microteslas to milligauss?

One microtesla equals 10 milligauss (1 uT = 10 mG). To convert a microtesla reading to milligauss, multiply by 10.

Do low EMF infrared saunas produce zero EMF?

No electric sauna produces zero EMF while connected to alternating current. Any electrical circuit with current moving through conductors generates electromagnetic fields. While models advertise low EMF through panel designs or carbon fiber wiring, electrical current is still required to operate the heaters, so fields are never completely eliminated.

Do these saunas carry electrical safety certifications?

None of the four listings reviewed here state an independent electrical safety listing such as UL or ETL. While makers highlight low-EMF claims and wood construction, shoppers looking for verified electrical safety standards should look for documented certification marks on the product listing or label.

Sources: Amazon product listings for the saunas named above, collected 10 October 2026. Related: our sauna electrical requirements and carbon vs ceramic infrared heaters.

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