NO FILTERS OR PARTS TO REPLACE - EVER. NEW IN UNOPENED BOX. Paid $249 - reduced to sell for less than half. Endorsed by the Asthma & Allergy Foundation of America. You'll be shocked at all the gunk this pulls from air you breathe right in your own space. Get rid of allergens & irritants like pet dander, pollen, dust mites, smoke and odors. Wipes clean with damp paper towel. Works silently - not a noisy fan. Just plug it in - designed to run nonstop. Instructions in box.