An electromagnetic field (EMG) is a force that comes from electrically charged objects. It is made up of an electric field and a magnetic field. An electric field is made by charges that are not moving. A magnetic field is made by charges that are moving. The magnetic field is measured in milligauss (mG). Our sauna products have been developed to have low EMF. The EMF levels on our low sauna models range from 5mG to 10mG at a distance of about two inches from the heater panel. For our Ultra Low EMF sauna models, the EMF levels range from 3mG to 5mG at the same distance. There is no evidence that infrared saunas are not safe. In fact, people say they are good for you. They help with things like making your heart healthy and making your muscles feel better. So if you want to try a sauna, an infrared sauna is a good choice.