If a dehumidifier and a humidifier fought, which one would win?
the weirdest part is I never though about it but my brain immediately started thinking of the variables and my guess is it depends on both the water deposit capacity and the power (defines the flux of spray/suction) of each device. If they are both on for a long time, the humidity will rise at first and reach a new equilibrium of water being released and captured. If we measure it before turning them on and then after it stabilizes, setting a time period for the measurement, we’ll get an answer, but on the long term it will depend on the water deposits, because eventually the humidifier will stop spreading water droplets and likewise eventually the dehumidifier will be full and stop capturing water. It really depends on water and power capacity, but if I had to take a guess, the dehumidifier wouldn’t be able to counteract the humidifier’s water release, so the humidity would increase at first. Now, if the humidifier is tiny and the dehumidifier has a big capacity, there’s a change it would suck the artificial humidity and carry on sucking the air so that when it finally reached its limit, the room would be dryer than in the beginning of this experiment.
The Obsessive Dilettante 