Product Description: PUREBURG Replacement Filter Compatible with MaxLite AP215SF1 & AP215SF2 Air Purifiers, 2-Pack H13 HEPA Activated Carbon 3-Stage Filtration Disclaimer: This product is a generic item that is designed to replace the original part. Any brand names or logos are the registered trademarks of their respective owners. Any use of any brand name or model designation for this product is made solely for purposes of demonstrating compatibility. . PUREBURG - Pure Your Breath! We value your satisfaction. If you have any problems using our product, please always contact us. 2-Pack, H13 3-Stage Filtration True HEPA Filters (A replacement filter is a combination unit that contains the mesh pre-filter, High-efficiency HEPA filter, and activated charcoal all in one.) Compatible with MaxLite AP215SF1 & AP215SF2 Air Purifiers H13 True HEPA capture up to 99.97% of airborne particles as small as 0.3 microns. This includes dust, pet dander and other minute particles ,Activated Carbon reduce Chemicals VOCs, tobacco smoke,PM2.5,common household bad smell,Fine Mesh Layer Prevents large particles such as dander,Pet hair . 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. Every Product made by PUREBURG is Tested through Rigid Examinations and QC Procedures.