Quote Originally Posted by dusto2k3
Tomtech, I labeled the room 1, 2, 3. You might need to get more of #3 to move the air inside your grow room. Of, maybe more #2 to keep fresh air moving in to the room. #1 can be passive, just a vent or active, (aided by a fan).
huuhh, thanx cool drawing :rastasmoke:
why is it so important to be the exhaust fan above? the used air moves up?