I lived in a dorm on campus last year, and these Air Effects really helped our room to continue to smell fresh and clean, even if it wasn't.  My roommate and i were pretty messy, and i would often have people come over to watch a movie or something else.  She also worked as an archeologist undigging dead people, and would often come back smelling like dirt and gross.  Luckily, the Air Effects really helped our room smell good.  I had the fresh linen scent (my favorite) and it really helped improve the atmosphere in our room.  We weren't allowed to burn candles for safety reasons, so we...