Minimizing sources of electromagnetic field exposure is the primary strategy, rather than solely relying on shielding.

“what I like to tell people whether it's for grounding or anything or shielding like try and reduce the exposure the sources as best you can is your first step and then think about you never want to block like the Earth's natural emfs either which low frequency they're magnetic field so if you're optimizing for radio frequency You' probably be fine but that's where you know the electrical power piece is is is pretty important”