H13 4-Stage Filtration True Hepa Filters, 2-Pack( 4 Filters) | | Compatible With Levoit Lv-H128 Air Purifier , Part # Lv-H128-Rf | | H13 True Hepa Capture Up To 99.97% Of Airborne Particles As Small As 0.3 Microns. This Includes Dust, Pollen, Pet Dander, Smoke, And Other Minute Particles ,Activated Carbon Reduce Chemicals Vocs, Tobacco Smoke, Pm2.5,Common Household Bad Smell,Fine Mesh Layer Prevents Large Particles Such As Dander,Pet Hair | | Please Replace Regularly To Keep Your Machine Fresh And Clean. For The Best Performance, Clean The Filter Once A Month With A Soft Brush Gently Or With A Vacuum Cleaner. | | Top-Notch Quality Used For Maximum