PUREBURG Replacement Filter Compatible with COLZER BKJ-33 Air Purifier, H13 True HEPA and Activated Carbon Multi-Layer Filtration, Pack of 1

3-Stage Filtration H13 HEPA Filter (A replacement filter is a combination unit that contains the pre-filter, High-efficiency HEPA filter, and activated charcoal all in one.) | Compatible with COLZER BKJ-33 Air Purifier | H13 True HEPA capture 99.97% of PM2.5 dusts 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 the best performance, clean the filter once a month with a soft brush gently or with a vacuum cleaner. | Top-Notch Quality Used for Maximum Customer Satisfaction Guaranteed. Change the PUREBURG replacement filter in a minute, no tools required. Note: please remove the new filter from the plastic bag before placing it into the machine.