Posted by Article One on
URL: https://www.es-forum.com/DO-RF-S-AND-MAGNETICS-COME-THRU-WINDOWS-EASIER-THAN-WALLS-tp3311792p3318164.html

The only thing I'm aware of that magnetic fields don't go through is
MuMetal, a specialized metal designed to block magnetic fields (someone
correct me if there's some thick, heavy material other than that which'll
attenuate magnetic fields).

The best thing to do for magnetic fields, if you can't stop them at the
source, is increase your distance from them.

Wireless RF is, as mentioned in the other messages, blocked by most metallic
substances, to varying degrees, and can be kept out with certain carbon
fabrics, carbon paints and metal-based paints.

Take care,

R.


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