tokingtiger
Well-Known Member
I filter both ends of my air leaving the grow tent. After 6 months I put a new filter inside and take the inside one outside.. the reverse direction gives it a longer life. I do not filter air coming in though.. you need a speed control on your fan, mine is set about 60% and still sucks in the sides a little.. I actually set my fan speed to the sucking in of the walls!