DuPont Pet Filter with True HEPA for TruSens Medium Air Purifier Because I have a kitten, I got this DuPont Pet Filter with True HEPA for TruSens Medium Air Purifier ($59) to go with it. In addition to collecting allergens and pollutants, it also helps pick up pet dander. Image Source: trusens.com DuPont Pet Filter with True HEPA for TruSens Medium Air Purifier $59 from trusens.com Buy Now