Filter replacements: Bissell recommends changing the air filters every a few months, and the process is straightforward and intuitive. OEM replacement filters are available on Bissell, and generic replacement filters are available on Amazon. Ultraviolet germicidal irradiation (UVGI): Some brands declare that their air purifiers eliminate airborne viruses, microorganisms, and https://motorolababymonitor97307.look4blog.com/65427226/everything-about-alkaline-water-purifier