The Blueair 400 Series Particle Filter utilizes HEPASilent technology to remove harmful particles from the air such as pollen, dust, pet dander, and bacteria. Using electrostatic and mechanical filtration Blueair purifiers filter out indoor pollutants with 99.97% accuracy down to 0.1 microns in size. The thermally bonded polypropylene and polyethylene filter fibers are naturally free of chemicals, naturally anti-bacterial, and fiber shedding resistant. The gradient filter structure is less dense than other filters allowing Blueair purifiers to achieve greater airflow with lower air pressure and a quieter, more efficient clean air delivery. The Blueair 400 Series Particle replacement filter is made with materials that are 100% recyclable, so you’ll only add clean air back into your environment. Recommended filter change: 6 months when used 24 hours a day.

This advanced combination filter removes virtually all airborne contaminants, including minute virus-sized contaminants such as pollen, dust, pet dander, mold spores, allergens and bacteria. The activated carbon is also effective against smoke, odours, gases and volatile organic pollutants (VOC).

Get to know the smallest and slimmest air purifier in the Blue family: Blue Pure 411, which incorporates Blueair’s world-leading filtration technology and is designed for rooms up to 161 ft² (15 m²). Grab the air purifier, place it wherever you want, plug it in and breathe perfectly clean air around the clock.