Blueair Blue Pure Fan Genuine Replacement Filter, Particle Filter for Large Pollutants Like Pollen & Dust

Genuine Blueair particle replacement filter for the Blue Pure Fan, Cleans as it cools, the Blue Pure Fan filters out over 99% of airborne dust and pollen particles in just 20 minutes⁰, Genuine Blueair replacement filters for optimal performance., We recommend replacing your filter about every 6 months when used 24 hours a day