Filter replacements: Bissell suggests changing the air filters each individual a few months, and the process is not difficult and intuitive. OEM replacement filters can be found on Bissell, and generic replacement filters are available on Amazon. Ultraviolet germicidal irradiation (UVGI): Some makers claim that their air purifiers destroy airborne https://socialbuzzfeed.com/story2304687/dyson-air-purifier-secrets