Winix Ultimate Pet Air Purifier with True HEPA Filter If you have more than one pet and a large space, consider the Winix Ultimate Pet Air Purifier with True HEPA Filter ($217). The larger model can cover up to 300 square feet of space. It's also made with a pre-filter, which catches larger particles like pet hair. Image Source: wayfair.com Winix Ultimate Pet Air Purifier with True HEPA Filter $217 from wayfair.com Buy Now