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I'm building my own small mining farm in the basement of my house but i'm a little bit worried about how dry the air has to be.

Is it a problem when the relative humidity is about 70% ?

With the temps miners run humidity is not really an issue. They are too hot for condensation to happen! ;)

Ok thx i thought about the temps but was not sure if there is something i didn't think about. Then will only be the dust a problem but cleaning with air pressure should be easy.