Prefilter compatible with Tineco A10, A11 Hero, A10, A11 Master cordless vacuum cleaner The prefilter is essential for maintaining suction power and efficiency Regularly clean or replace the filter to prevent loss of suction The prefilter can be rinsed Rinse with cold water and reinstall only after completely dry Replace the filter every 2 to 3 months Replacement frequency may vary based on usage The filter helps keep the vacuum clean and reduces the release of dust, pollen, and other allergens into the air Material: ABS Color: As shown Package Contents: 8 x Filter Cartridges, 1 x Cleaning Brush, 1 x English Manual Only the listed items are included; other products are not included Note: Lighting and display differences may cause slight color variations between the image and the actual item Measurement error allowance: +/- 1-3 cm