AP-T20FL Replacement 360 True HEPA Filter for AP-T20 and AP-T20WT Air Purifiers - HEPA - For Air Purifier - Remove Dust Remove Odor Remove Airborne Particles Remove Allergens - 99% Particle Removal Efficiency - 0 mil Particles - Carbon
Built-in prefilter and carbon odor filtration
Fits  HEPA-Type 5-In-1 Tower Air Purifiers AP-T20 AP-T20WT
Removes up to 99% of airborne allergens as small as .3 microns
To be replaced every 12 months