This question also occupies me. Although we do not have an electrical box in the bedroom, we do have one in the hallway. I also want to reduce electromagnetic pollution and will be interested in such shielding products.
I don't want to spend money on hocus-pocus after all....
Exactly, I don't want that either. With my investments, I want to see the benefit. I don't have money to just throw away either. We have a field switch on our fuse box. The power is then cut off when it is not needed.
Whether that really helps, no idea. :confused::confused: