•3 Complete Sets Fits WInix Air Cleaner Models: P300, WAC9500, WAC9000, WAC5000, WAC6300, WAC5500, WAC5300, and WAC5000B. •Convenient all-in-one replacement cartridge. Includes Washable Carbon Pre-Filters •Helps effectively filter airborne irritants such as smoke, pollen, dust, mold spores, pet dander and fabric fibers. 4 Stages of air cleaning •Removes 99.99% of all airborne pollutants as small as 0.3 microns from the air passing through the filter.