[Wide Compatibility]: The filter compatible with For A10 Hero, A10 Series, A11 Hero, A11 Series, S11, S11 Series, PWRHERO11 Snap, S12 Pro EX Cordless vacuum cleaner. [High Efficiency Filtration]: These vacuum filters replacement are made of high-quality materials, and stable, can maintain a good filtration effect for a long time, improve cleaning performance and strong suction. [Washable and Reusable]: After a period of use, the replacement filter can be cleaned with water to remove the dust and dirt accumulated in them and maintain their normal working effect, and must be completely dry before reinstallation.Please replace the pre filter every 3-4 months, HEPA filter every 6 months for continuous cleaning performance. [Easy to Install]: You just need to remove the old filter and install the A10 A11 filter in place for continuous cleaning performance. Colour:As Shown Material:Acrylonitrile Butadiene Styrene (ABS), HEPA Package Contents: 6 x Pre Filters 6 x HEPA Filters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.