I have four plants currently in flower, with only the two odor-ionizer cfl lamps ... I have one Cinderella99/Northern Lights (no aroma anyway), and three stinkers: SAGE/Cotton Candy/NYCdiesel hybrids ... I have very little sense of smell, but my girlfriend smelled the small, immature, vegging plants immediately upon entering the house ... now, with them flowering, she smells little or nothing, unless I open the cabinet door ... they work, I think perhaps mine works better, because I'm really not running enough 'fan', and the cabinet air has 'time' to be treated on its way to the exhaust ... just a theory ... :smokin: