[NorthernSanctuary]

She can cut off the EMF if she is totally enclosed in a metallic container or metallic cage. The spacing in the metallic cage is important as that affects the frequency of the energy that can get through. For the cell phone/WiFi, you need a finer mesh.

You can use a cell phone which shows the EMF energy strength on the display. There are areas in the country where you can see that the cell phone EMF is down to 0. Land that is surrounded by mountains can easily shield the EMF.