Compatible Models: This Replacement Part Is Suitable For Tineco A10/A11 Hero, A10/A11 Master, A10 Dash, Pure One S11, S12 And X Series, Pwrhero11 Snap Cordless Vacuum Cleaner. Please Confirm The Vacuum Model Before Purchg. If You Have Any Questions, We Are Glad To Help You | | Discounted 6-Pack Kit: This Product Is 4+4 Filter Accessory Set, Including 4 Pre-Filters And 4 Post-Filters. Using It Together And Replacing It Regularly Will Protect Your Machine And Meet Your Cleaning Needs | | High-Efficiency Filtration: The Pre-Filter Uses A Four-Fold Filtration System, Polymer Filter Cotton Layer By Layer To Isolate Dust And Other Particles, To Realize Secondary Purification. The Post-Filter Adopts Hepa Standard And Folding Filter Design, Releg Healthy And Fresh Air. With The Cleaning Helper, Your Vacuum Can Work More Efficient To Ensure Air Quality | | Removable And Washable: Wash The Filter In Warm Water And Let It Air Dry Completely Before Use. To Ensure Your Vacuum Clea.