Quote Originally Posted by Al B. Fuct
So, what happens to the temps and particularly the humidity in the room over the 3 hours that no air is moving through it?
According to those much wiser than me, temps in the 90's are just fine if you are using co2. As far as humidity goes, one needs a dehumidifier in a sealed room.

...but criom loves buying equipment so that will surely come as good news to him.