My grow space is 4x4x7 using 1000w hps 4" inlet and 6" exhaust into the bag. My question is "Why wouldn't this work"
Is the bag still working out for you? My veg room out vent has no carbon filter because it's barely necessary but in reality it sometimes gets a bit of stench coming from the flower room next-door and I'm thinking I might try this out. Not much to lose.