I was recently complaining to my sister about how I couldn't seem to keep the smell down in the room my cat's litter box was occupying. I changed the litter regularly and had tried the sprays, but nothing seemed to work. I knew I couldn't use any of the scented candles because the cats would knock them over.
She told me how she had bought some Fabreze Noticeables and how they worked really well for keeping the smell down around her cat's litterbox. She gave me one of her extra units and I took it home and plugged it in and within a short time, I could tell a big difference in the odor in the room. I didn't smell the bad odor anymore and while I didn't smell the fragrance of the Fabreze scent all over the room, but it did dissapate the odor from the litter box.
My only complaint is that even on the low setting, the oil does tend to dissapear relatively quickly and the refills seem expensive.