Is the humidity really that high in AZ that you need that?
I don't understand, I am in WV and in the summer the humidity stays around 50 to 80%.
I have my compressor outside, it dumps into a buddy tank, then plumbed into the garage, straight to a line drier, then goes up the ceiling, then dumps in each corner of the garage, with a line drier.
No water issues what so ever.
The tanks do accumulate a lot of water, one time, I loosened the drain on the air compressor, and no air would come out, I had to remove the fitting, and poke a screwdriver in the hole to allow the sediment to blow out, along with a flood of water, I added a ball valve to make draining easier.
