While we're all throwing out ideas I guess I'll throw one out... A DIY humidifier with ice cubes in the water? Win win, with increasing humidity (assuming Phoenix is pretty dry) and offering a cool breeze?
Aquarium air pump (10-20 or a 60 gallon size, up to you)
Some aquarium hose
An airstone of whatever size will fit in bottle
Empty plastic bottle (Gatorade works well, but something slightly bigger might work better?)
Google how to assemble.
Just whip it up, run it to the cool side, turn it on or plug it into a timer!
Not sure if this will work for the OP but it's a genius idea for raising humidity! So simple too, thanks