So the concept that a dehumidifier can remove radon does not make much sense (as much as most of us would certainly desire this to be true). It's a gas, so it clearly will not wind up in the water collection container or water tube. And also even if somehow it were divided out inside the dehumidifier, it would just be pushed out right into the same air on the rear end. The picture listed below shows that running a dehumidifier clearly had no impact on the radon levels-- see the red arrowheads. By applying adequate follower stress to relocate this air throughout a number of levels of a flooring and also to ultimately press it over a roofing line, it makes good sense that an ASD would be such a powerful dehumidifier in itself.