I was wondering why my "scrubber" wasnt working, and after looking up the recommended CFM movement (being able to scrub the whole room in 5 minutes) and I only had about 1/5th of the suggested CFM going through my fan. My question is, before I go buy a 600 CFM fan and big carbon filter, does anyone have any negatives about scrubbing the air in the room? Is it an effective odor control method?