The only way to control EM is to get rid of electricity.
A car has EM, forget WiFi, BT, Microwave. Power lines at 110Kv/440Kv are equally dangerous. 110v/220v home power lines also emit radiation. Fluorescent lights emit radiation, as does CFL. Any copper conductor, even inside a dielectric/insulator will emit radiation.
The modern lifestyle is full of EM. OCCD just adds to it.
True, whenever you have a current flow, there is a corresponding magnetic field, hence, some sort of EM radiation. However, what we are talking about here is radiation in the microwave spectrum that is much more energetic than what we experience from even high voltage EM emissions. These microwave emissions have been shown to cause significant damage at the cellular level. Sadly, most, if not all, of the government agencies that are supposedly protecting us, are really only protecting the profits of the companies engaging in business in those particular areas, i.e. FCC/Telecom industry, FDA/Big Pharma, USDA/Big Agra, and so forth. My advice: disconnect from wireless/Bluetooth as much as you can.