I've been using this in my son's room, which is a larger area than what is recommended for this device. We don't have a room small enough for the purifier. Unsure if it's cleaning air or not. It may help with smells as I have not noticed diaper smell as much lately. Would probably purchase a larger purifier for whole floor or at least a large room. Would recommend this if you have small room. It is loud if it's on high setting, tolerable on low.