This spare part is suitable for Tineco A10/A11 Hero, A10/A11 Master, A10 Dash, Pure ONE S11, S12 and X, PWRHERO11 Snap cordless vacuum cleaners. Please confirm the vacuum cleaner model before purchasing. This product is a set of 4+4 filter accessories, including 4 pre-filters and 4 post-filters. Using it together and replacing regularly will protect your pre-filter uses a quadruple filtration system, polymer cotton filter layer by layer to isolate dust and other particles, to achieve secondary purification. post-filter adopts HEPA standard and folding filter design, releasing healthy and fresh air. With the cleaning assistant, your vacuum cleaner can work more efficiently to ensure quality air. Wash the filter in lukewarm water and allow it to air dry completely before use. To ensure correct and optimal functioning of your vacuum cleaner, it is recommended to replace the filter every 3 to 6 months depending on your use. [Compatible Models] for Tineco A10/A11 Hero for Tineco A10/A11 Master for Tineco A10 Dash for Tineco Pure ONE S11 for Tineco Pure ONE S12 for Tineco Pure ONE X series for Tineco PWRHERO11 Color: as shown Material: plastic Package Contents package: 4 x pre-filter 4 x post-filter Only the above package, 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 allowable measurement error is +/- 1-3 cm.