I dont think growers that use C02 usually vent or pull out the air in the room, thats why the box hanging there kind of confused me, well that and being super stoned. So your only pulling the air out of there periodically when the C02 is turned off?
you got it. Have the fan cycle finishing about 30 min prior to the CO2 discharge, and am running two cycles per 24hrs.
Let us know how that works for you. I think that is my next investment
