What is a 3-in-1 HEPA filter?Updated 4 months ago
The Windmill 3-in-1 Filter has three layers of filtration: (1) Pre-Filter (to help filter dust, mold, hair,
and other large particulates), (2) Activated Carbon Filter (to help remove odors, harmful gasses,
smoke, and other volatile organic compounds), and (3) True HEPA Filter (to help filter 99.97% of harmful airborne particles down to .3 microns).