Air400 Replacement Filter for Bissell Air400 Purifier, 1 Filter +1 Carbon Filter +4 Pre-Filters, Compared to Part# 2521, 2520, 3365

Air400 Replacement Filter for Bissell Air400 Purifier, 1 Filter +1 Carbon Filter +4 Pre-Filters, Compared to Part# 2521, 2520, 3365

• 【Designed for Air400】Our premium Air400 filters Combo Compatible with Bissell Air400 Purifier, Compared to part# 2521, 2520, 3365.
• 【3 Stages of filtration】3-Stage Air400 filter features a Pre-Filter, Efficiency Filter, Activated Carbon Filter, the filter targets all common air pollutants such as pollen, pet dander, VOC's, smoke, and odors.
• 【Filtration Performance】Air400 filter media is created using melt-blown technology. It can use mechanical or charged filtration mechanisms to capture microns particles
• 【When To Replace Your Filter】Air 400 filters should be replaced every 6 months, depending on the air quality and environmental factors in your area, Pre-filters should be replaced more often since they help capture larger particles and extend the life of the filter. We suggest changing the pre-filters every 2-3 months, replace your activated carbon air filter once every 12 months.