Nispira 400 Series Replacement Filter Compatible with Blueair 400 Series Particle Filter Models 402 403 405 410 450E 455EB 480i, 1 Pack

The unique design of Nispira filters effectively captures particles of all sizes while ensuring optimal airflow, preventing clogging, and avoiding the release of trapped particles back into the air, even when the filter is heavily used. Nispira filter removes smoke, odors from pets, cooking smells and VOCs chemical. Give you a peace of mind for fresh air. Moreover, the advanced polypropylene filter effectively removes particle pollutants as small as 0.3 microns. The Nispira Replacement Particle filter typically maintains air quality for six months to a year, with the actual lifespan influenced by environmental factors and fan usage.