I have a cab box (sorry if this should go in that board but it seemed appropriate here), it's a wardrobe closet, but it's got a shelf about a foot below the top, would it be possible to fabricate a scrubber into that. I was thinking of making it a hole (would have to measure to see what area) in the metal shelf, then building a box at the top with a fart fan and a carbon filter near where the hole is? Sorry i'm kind of stoned and it's a half thought idea, i'll do more research.