Compatible : Compatible with the Blueair Blue Pure 411, 411 Auto, 411+ Air Purifie-r. Get back to having a clean air to breathe again! Particle Filte-rs ：PARTICLE filte-rs can clean up 99.97% of airborne particles, including pollen, dust, pet dander, common pollutants, and fabric fibers. Premium Quality: We deliver high quality, durable and long lasting replacements, allowing the filte-r to last longer, and has a collapsible design.They are an efficient investment. In order to improve the performance of the air purifie-r, please replace the carbon filte-r every 6~8 monthes. Activated Carbon: The high-grade activated carbon filte-rs can efficiently odors and fume, such as smoke, cooking smells, and pet odors. Customer Service: Package include 2 x Carbon Filte-r. If you have any problems with the filte-r fitting your air purifie-r, please contact us through our Amazon home page. Filter made of FSC-Certified paper Blue Pure 411 Auto, 411, 411+ Replacement Filte-r Compatible with Blueair Blue Pure 411 Auto, 411, 411+ Genuine Air Purifie-r, Include 2 Particle and 2 Activated Carbon
Package Included: 2 Particle and 2 Activated Carbon
Dimensions: 11.4" x 11" x 2.2"
Note: This is not a Blueair OEM product. The Blueair brand names and logos are the registered trademarks of their respective owners. Any use of the Blueair brand name or model designation for this product is made solely for purposes of demonstrating compatibility.