Scope of products

What is the scope of the products sold at online stores (direct and indirect) regarding the "electromagnetic pollution"?

In the area of "electromagnetic pollution" the scope of the products is the measurement, protection and equalization of electrical and magnetic fields, from the following sources:

1-Electricity (high, medium and low voltage).

2-Wireless Communications, outside and inside buildings, including wireless networks, cordless phones and cell phones.

3-radio and TV

4-emergency communications networks-TETRA

5-speed cameras

6-microwave ovens