3-Pack Replacement Filter for Blueair 500/600 Series SmokeStop Filter, Odor Removal Classic 501, 503, 510, 550E, 555EB, 601, 603, 650E, 505, 605

1-Pack(3 Filters), H13 4-Stage Filtration True HPEA Filter Set | Compatible with Blueair 500/600 Series SmokeStop Filter, Odor Removal Classic 501, 503, 510, 550E, 555EB, 601, 603, 650E, 505, 605 | H13 True HEPA capture 99.97% of PM2.5 dusts PM2.5 down to 0.3 microns in size. Remove large and PM2.5 particles, including dust, common pollutants ,Activated carbon reduce Chemicals VOCs, tobacco smoke, PM2.5,common household bad smell | Please replace regularly to keep your machine fresh and clean,For best results, remove the filter once a month and clean with a soft brush or gently vacuum. | Top-Notch Quality Used for Maximum Customer Satisfaction Guaranteed,Change the PUREBURG replacement filter in minutes, no tools required; note: please remove the new filter from the plastic bag before placing it into it.