RaymondStone
Well-Known Member
So I am building a nightstand grow box. I'm using 2x120mm 40cfm pc fans to vent air. What I am thinking of doing is strapping one of those replacement filter cartriges to each fan. They are made of plastic, filled with activated carbon and have filter fiber to remove particals. This would help prevent dust from clogging the carbon. Has anyone done this before?