Lets say I have a good exhaust fan in my grow room, which I pipe to the outside of the grow room in say, 4 or 6 inch PVC, and I add a 5 gallon bucket with a lid, and full of charcoal inline with the PVC piping. Would that get rid of the smell so nosy neighbors couldnt catch a whiff? Would one pass through the bucket do the trick? I would be exhausting to the outdoors, so as long as it got rid of the majority of the smell i'd be happy, as nobody would be coming close to the exhaust. It would be going out a high roof.