Pro Smokestop Filter for Blueair Pro Air Purifiers, Particle & Carbon Folding Filter, Dust, Pollen, Smoke Removal

Compatible with Blueair Pro M, Blueair Pro L and Blueair Pro XL Air Purifiers (Pro M = 1 Filter, Pro L = 2 Filters, Pro XL = 3 Filters) | True HEPA filtration captures harmful ultrafine pollution particles down to 0.1 microns in size effectively and traps up to 99.97% airborne contaminants from the air | Activated carbon pellets can reduce smoke, odors and harmful VOCs | Ideal for people who has allergies to dust, pollen, pet hair and dander | Package contains 1 filter replacement, item dimensions: L:16.6*W:13.7*H:1.6 inches; For best perfermance, recommended to replace the filter every 6 months or depend on air quality