I see what your saying about the humidity dropping when you open it up! Why open it tho? You use perlite and the humidity stays up the perlite will NOT dry! You dont open it maybe twice to let some air in and out. You open a closed container that is smaller then the entire incubator technically the humidity in the small container is going to ecscape and be gone by the time you close it back up. Your substrate will stay moist if you use vermiculite yea..but using perlite it isnt going to dry out if you open it for just a few minutes. I guess its opinion and through experience but to me a small sealed humidified to the max platic container is not going to keep fresh air in it. I dont know. Maybe we should do a couple good controlled tests. I can open my hovabator and the humidity goes back up within about 20-30 mins. Who knows just kinda opening up a good discusion hopefully!

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