I think it's easier to protect from 5G than from 4G.

Please, be careful with this paint!
It cannot be easily removed and even painting afterwards again & again will NOT undo it!

The effect will be: everybody using cell phone and/or wifi will also get "their shit back right at them".

Locking out 5G, ok.

But will YOU use it?

This is most harmful. And your mobile? Do you carry it with you?

I made a clear decision: none of this crap for me & radiation stays out!

So buy something like acousticom 2 to clearly see how much there really is (can measure up to 8Ghz, not 60 unfortunately).

Good luck!