sorry junkboxer the fan and scubber is good for my space I dont need a lot for 3x3x6 hydro hut. The reason you dont want a lot of air going through the scubber is so you can clean the air of smells good I learned this from a good friend thats been growing for over 20 years. He always says get a fan thats a few cfms lower than your scubber I havent had any problems with mine. If you want you can get a fan and scubber the same cfms or you can go for more. Thats the reason Iwhy I use that set up.:rastasmoke: :rasta: