@fac Try looking up Radio Fog, Radio Smog, Radio Frequency Pollution. It is probably worse that any of us ever expected.
Radioactive Pollution: Meaning, Causes, Effects, Preventive and Control Measures - ImportantIndia.com
@bruce19
I got mine for an off the wall company, but I know that Amazon sells the materials as well as some specialized companies that deal wiht ONLY this type of product:
https://www.amazon.com/s?k=emf+blocking+cloth&crid=2CVEND4OXVPX4&sprefix=emf+blocking+cloth%2Caps%2C138&ref=nb_sb_ss_ts-doa-p_6_18
5 Best RF and EMF Shielding Fabrics - Buyer’s Guide - EMF Academy
And if you are one of those I mentioned that wants to shield an entire room.
https://emf-guard.com/5g-shielding-paint