BlueAir 500/600 Series Particle Filter Kit

BlueAir 500/600 Series Particle Filter Kit fits models 501, 503, 550e, 601, 603 and 650E. Three particle replacement air filters that remove dust, pollen, bacteria, pet dander, mold spores and other airborne particles. The particle filter is made of polypropylene, which mechanically filters out airborne particles. To maximize filter effectiveness, particles are negatively charged before reaching the filters. These replacement air filters are also partially composed of activated carbon which removes odors and gases. Genuine Blueair replacement filters.