Make the most of your BISSELL air320 air purifier by replacing the filter every 6 months. Regularly maintaining your air purifier by replacing the filter with a genuine BISSELL HEPA replacement filter means your air purifier can continue capturing pollen, dust, pet dander, odors, and VOCs in the air. Our HEPA Filter captures 99.97percent of 0.3 micron particles and smaller, so you can breathe easy. BISSELL proudly supports BISSELL Pet Foundation and its mission to help save homeless pets. When you buy a BISSELL product, you help save pets, too. We're proud to design products that help make pet messes, odors and pet homelessness disappear. Color: One Color.