?2-Pack,3-Stage Filtration True Hepa Filters | | ?Fully Compatible With Homedics Totalclean Tower Air Purifier , Ap-T20 / Ap-T20Wt , Part # Ap-T20Fl | | ?H13 True Hepa Capture 99.97% Of Airborne Dusts Pm2.5 Down To 0.3 Microns In Size. Remove Large And Airborne Particles, Including Dust, Common Pollutants ,Activated Carbon Reduce Chemicals Vocs, Tobacco Smoke, Pm2.5,Common Household Bad Smell | | ?Please Replace Regularly To Keep Your Machine Fresh And Clean,For Best Results, Remove The Filter Once A Month And Clean With A Soft Brush Or Gently Vacuum. | | ?Top-Notch Quality Used For Maximum