I originally only bought the Airwick Ultra Sprayer because while doing some shopping at Sam's Club it was on sale for $10, it came with one unit and 3 refills. It seemed like a great deal so what the heck! lol I brought it home and hung it up in the room that needed the most help with odors. My Kitchen!!! I have a very sensitive nose so I smell everything in there, from the trash to the cup of kool aid my son just poured for himself.  I put the setting on 9 minutes and left the room to do laundry, when i came back in the kitchen I was amazed that all I could smell was the Tangerine scent… read full review »