Faraday cages are not intended for that purpose.
Magnetic shielding is a well understood concept. What you need is some thickness of ferrous metals.
https://en.wikipedia.org/wiki/Electromagnetic_shielding#Magn...
https://web.archive.org/web/20070327130322/https://advancema...
https://interferencetechnology.com/magnetic-shielding-basics...
It's easy to test the efficacy of magnetic shielding yourself if you have a large, powerful magnet and a CRT monitor handy.
Faraday cages are not intended for that purpose.
Magnetic shielding is a well understood concept. What you need is some thickness of ferrous metals.
https://en.wikipedia.org/wiki/Electromagnetic_shielding#Magn...
https://web.archive.org/web/20070327130322/https://advancema...
https://interferencetechnology.com/magnetic-shielding-basics...
It's easy to test the efficacy of magnetic shielding yourself if you have a large, powerful magnet and a CRT monitor handy.