Replacement washable Pre-Filter for the HEPA+ 2000 Air Purifier is the first stage in a 3-stage filtration process that removes airborne allergens, pollutants and contaminants so that you can breathe cleaner, fresher air. The main job of the Pre-Filter is to trap large airborne particles that come from dust, dust mite allergen, pet dander, pollen, and more. The Pre-Filter, which stretches around the HEPA Filter Cartridge, helps to extend the life of the HEPA, whose job is to capture and retain much smaller particles. Package contains one (1) Pre-Filter (Black).
Please see Owner's Manual tab for full instructions on changing the pre-filter.
General on Pre-Filter:
Click here for the Owner's Manual on the HEPA+ 2000 Air Purifier.