The BioMat is very different from a standard heating pad. It does not contain heating coils, or any point sources of heat, so it does not present the practical dangers associated with heating pads. It also has EMF protection built-in. And yet, the BioMat can transfer far more heat into the body, compared to a heating pad. This is because the heat transfer is radiant, not conductive. And since the heat is distributed evenly throughout the body, rather than just on the skin, there is great therapeutic value.
The radiant heat is produced by hot crystals that cover the surface of the mat, and there are settings to control the desired temperature of the crystals. The crystals are warmed by a flexible conductive heating plate, which was developed originally by NASA in order to safely warm space stations and other space vehicles.