All electrical appliances produce so called EMF (electromagnetic field). This EMF can be harmful in large quantities. EPA suggests max exposure between 0.5 mG to 2.5 mG, and most appliances are producing much more than that. For example, your microwave produces 25 mG in 3 feet radius. So what about Healthyline EMF? Well in this video you can see for yourself. We are going to test Healthyline mat with cheap tool and with an expensive tool. We also going to compare results with regular heating mat.