PARTICLE filter reduces pollen, dust, pet dander, mold spores, viruses and bacteria.
RECOMMENDED to change filter once every 6 months, or dependent on usage. This filter can be recycled after it's changed. The 500/600 Series air purifiers use 3 separate filters, this replacement pack contains a set of 3 filters.
ENERGY SAVING Blueair air filters save energy due to a low-density design and requiring less pressure to push air through the filters. The filters are also 100% recyclable, so the only thing you're adding back into the environment is clean air.