BISSELL air280 and air280 max Replacement filterEvery Purchase Saves Pets. BISSELL proudly supports BISSELL Pet Foundation and its mission to help save homeless pets. Genuine BISSELL Replacement Filters for air280 and air280 Max air purifiers. For best performance, use only genuine BISSELL replacement filters, as generic air purifier filters may not deliver on the same high standards. Medical Grade HEPA Filter. Captures at least 99. 97% of particles 0. 3 microns and smaller. This filter effectively