I have three cats, a bunny and a puppy. I really NEEDED an effective way to kill odors in the air. I've tried all the new sprays and plug in air fresheners but didn't get the continuous effect I needed. I had a coupon for the Renuzit Super Odor Killer and it was on sale, so I figured I'd give it a try. I'm so glad that I did. It's not one of the new facny products that claim to kill odors. In fact, it's been on the market for as long as I can remember. But it works better than everything else I've tried.
I keep one in the family room, where the rabbt's hutch is, and one in the downstairs bathroom, where the cat litter box is. That's been enough to keep my house from smelling like a barn. They last anywhere from 3 to 5 weeks. They don't put out a scent, but rather they remove the odors I don't want.