I had days to fight in the utility room and cellar with fleas, I've probably taken from cats the stables with in the apartment ... The fleas have spread gradually throughout and nothing has worked against it. Since the individual rooms are not as big (12 and 18m²), the small Quiko Ardap Fogger seemed just right. One also wants to not have too much of the steam in the house ... So I slammed here and the result is perfect. The critters were stone dead on the floor. After thorough airing and tidy vacuuming I've never seen a flea. Handling is more than simple, easy to Fogger center up in the room (I got him on a chair set), press knobs and off you go. Hab's leave on overnight for safety and the next morning the windows thrown open. 5 stars - I can only recommend! Also a good weapon against spiders and other ugly roommate.