PUREBURG Replacement Filter Compatible with Bulex AF-3222 Air Purifier

2-Pack High-efficiency 4-stage Filtration True HEPA filters | Compatible with Bulex HEPA Air Purifier AF-3222 | 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.