Nispira TiO2 Replacement Filter Compatible with Aerus Electrolux Lux Guardian, Beyond Guardian, Blueair 400 series Air Purifier, 3 Packs

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.