Originally Posted by ArtosoftThe humidizer unit is a peltier device, semiconductor that will be hot and cold on each side when given DC power. The cold side of peltier will condense 'water in air' inside the DryCab, and sponge will bring it outside, and use the hot side of peltier to evaporate the water. Sponge also act as an air seal, so only water can go through, but not air. Clever !
When the DryCab's door open, the humidity inside DryBox is as your room's humidity. Your DryCab's humidizer unit will work hard, but will not bring down the humidity inside the DryCab to the preferred level. It works for nothing!
The amount of water condensed from air will increase and peltier's hot side is not enough to evaporate it. Thus, water will leakage. Create another problem like rust.
Same thing happen if the door's seal or humidizier unit's seal (or the glass/acrylic panel) is damage.
If the door is open only for a short while, it is ok. But for long time...? I hope my theory is make sense .