Bobs plants are nearly starting to smell i was just wondering how he can make a descent carbon filter he has a mini grow in a pc box under his bed and he has no output to outside really so what can he do to rid off the smell ??
there are things like Ona Block or Odor Killer gel. you just put the container in or by the grow. I don't have any experience with this stuff but I heard it works wonders. Just a suggestion Good luck
Buy a cheap carbon filter, some dryer hose, a PC fan, and a box that will tightly hold the filter in. Fit the fan in the hose so that it pulls the air into the hose and have the box with the filter stuffed in it at the end of the hose.