Hello. I need help! is it possible to create a box/cage (ive seen the faraday cage etc) to give one 100% protection from all/some the electromagnetic spectrums - and from electrical pollution? "Nothing enters and nothing leaves" style, so it but cut out all that comes outside of it, and blocks anything from inside of it to go out. The important part is that it gives 100% protection from extremely low frequency radiowaves/and noise. What materials would you use to such a box?