REPLACEMENT PARTICLE AND CARBON FILTER COMPATIBLE WITH BLUEAIR PARTS # BLUE PURE 211+ & MODELS BLUE PURE 211+ AIR PURIFIER FOLDABLE<br><br> TOP BENEFITS OF AIR PURIFIERS INCLUDE<br><br> LONG LASTING RELIABILITY<br><br> EASY TO INSTALL <br><br> MAXIMUM DURABILITY <br><br> HEALTHIER LIVING <br><br>This is a generic product designed and engineered in the United States by Crucial Air. This is not a Blueair OEM product and is not covered under any Blueair manufacturer's warranty. The Blueair brand names and logos are the registered trademarks of their respective owners. Any use of the Blueair or Blue Pure brand name or model designation for this product is made solely for purposes of demonstrating compatibility.