Its been a couple of years since I met two people who shared with me a lot about their experiences with EMF. One is trading and selling EMF protection devices and the other is a friend who has been severely affected by EMF and has dedicated her life understanding and countering it by any means possible, which includes meditation.

They both agreed that the two most well researched and most effective companies and their devices to counteract EMF are:

Geomack (London based) and Blue Shield (Oz based but distributing globally)

Worth exploring.