Please follow this link to find out what the folks at Catvia.com thought about the Purrified Air litter box air filter.
The Purrified Air litter box air filter is the result of years of research, experience in other forms of air filtration and learning the needs of cat owners. What’s more, the thing is so overengineered that it also works in bathrooms, kitchens, workshops and, with a kit, in pet and athlete transport vehicles.
The air filter does a great job against smoke, pet urine and solid waste smell. People who are allergic to cat stuff can get relief by using it. We know how hard it can be to find a litter box that works for you and your cat. One of the nice things about Purrified Air is its adaptability.