yea the pressure thing is good advice. in my room I have a 12" fan pushing air in and a 12" sucking air out thru a carbon filter. the only smell that excapes the room is through the AC unit...with the carbon filter on the "exit" side of the room I can put my face up in the vent when the fan is on and not smell anything and that's with 50 stinky plants right before harvest...
DH06 Reviewed by DH06 on . Ventilation Question I was wondering how a ventilation system with a carbon filter works? Does the exhaust air go through the carbon filter then outside? If so, wouldn't there be traces of odour since the filter can't get rid of all the smells? Which is the best venting system I should use to make sure there are no smell leaks? Rating: 5