Premium HEPA filter compatible with Blueair Models 201, 203, 205, 215B, 250E, 270E, and 303 air purifiers
It replaces original Blueair 200/300 Series Particle Replacement Filter
It is proved to capture 99.9-Percent of large airborne particles and allergens like pollen, mold and dust mite debris
One filter can last from 6 months to a year based on normal use.
Aftermarket filter. Quality meets and exceeds leading national brand.