Okay, i know this post is like almost a year old, but hope it can be answerd by the author or anyone with knowledge...(tried it)
i am about to start a 16-20 plant auto grow and will be growing in a homebox xl, (56' x 56" x 78.75") or 16sf... I have a 409cfm windtunnel 6" fan with a fan controller, insulated ducting & backdraft damper..i will be growing verticle, stadium step-up style in 3gal bags with a 600hps....(will be doing active intake via a 6" booster fan with backdraft damper, (runnin co2) bringing in fresh a/c air from portable a/c) i made the damm mistake of ordering one of those 6" odor-sok filters!!!..(havent used it yet though) (i too like those active air filters...cheaper and more carbon than can filters) also i will be doing that 5gal bucket/fan/ona-gel/soil-moist set-up for supplemental odor fighting!!! HELL MAYBE 3-4 OF THEM!!!! Dnt want no damm smell!!! Live in a condo/townhouse type dwelling.....whatta yall think??
Oh, any sugg. On where to find the cheapst on shipping for the filter.....
figure out how many cfm you need for exhaust to keep your cab cool. Then match your filter to that. If you do it this way you will be able to eliminate all the odor.
For example, i needed something like 700cfm to keep my room cool. So after getting the 747cfm fan, i went out and bought the filter which is rated at 400-800 cfm active air filter.
My room stays at the temps it need to be and there is absolutely no smell at all. I can press my nose up against the filter and not smell a thing. And this is with about 2 lbs in flower.