【Compatibility】Blue Pure 211+ True HEPA Replacement Filter Compatible with Blueair Blue Pure 211+ and Max Air Purifier.【Premium Filtration】 Genuine HEPA filter captures 99.97% of airborne particles as small as 0.3 microns.【Value Pack】Includes 2 Pack Blueair air purifier 211+ Replacement filters Only. please replace the carbon filter every 6~8 months.【Easy to replace】 Installation is easy, no tools are required. Simply remove and replace your filter unit when needed. Please replace the filter on time.【CUSTOMER SERVICE 】: We value customer service and satisfaction. If you have any problems with the filter fitting your air purifier, please contact us through our Amazon home page. Compatibility with: Blue Pure 211+ True HEPA Replacement Filter Compatible with Blueair Blue Pure 211+ and Max Air Purifier. Value Pack: Includes 2 Pack 211+ Filters True HEPA Replacement Filter Note: This is not an OEM product. The Brand name and logo are the registered trademarks of their respective owners. Any use of the brand name or model designations for this product is made solely for purpose of demonstrating compatibility! Track Page Views WithAuctiva's Counter