Good elasticity, uniform thickness, and in strict accordance with production standards Recommend to replace the A10 filter every 2-4 months, Depending on the frequency of use, it can be replaced by a shorter or longer time Compatibility: A10 filters Compatible with for Tineco A10 Hero / Master and A11 Hero / Master Cordless Vacuum Cleaner, for PURO A S11 / S12 Series Cordless Vacuum Cleaner HEPA Filter: Filter out most of the dust, pollen, smoke, odor, mold spores and pet hair The air filter captures particles up to 0 3 Micrometres in size and larger, which helps improve health Easy to Install: Remove the dirt cup from the cleaner, remove the old filter Install the new filter in place Replace the filter regularly, make your vacuum provide better cleaning performance Washable and Reusable In order to ensure the performance of the vacuum cleaner, please clean or replace the filter in time Rinse and let dry completely Colour: white Material: plastic Package Contents:4 * HEPA Filter Only the above package content, other products are not included Note: Light shooting 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