High-Quality: Made of high-quality materials for good durability and stability. Features good elasticity, uniform thickness, and meets production standards. Recommended to replace the A10/A11 filter every 2-4 months depending on usage. Compatibility: Compatible with A10 Hero/Master, A11 Hero/Master Cordless Vacuum Cleaners, and S11/S12 Series Cordless Vacuum Cleaners. HEPA Filter: Filters out most dust, pollen, smoke, odors, mold spores, and pet dander. Captures particles as small as 0.3 micrometers and larger, helping to improve air quality. Easy to Install: Remove the dirt cup from the vacuum, take out the old filter, and install the new one. Replace the filter regularly to maintain optimal cleaning performance. No tools requiredsimple, tool-free replacement. Air Quality: Helps filter harmful odors from the air, ideal for maintaining indoor air quality. A perfect accessory for vacuuming that supports a cleaner environment. Color: As shown Material: Plastic Package Contents: 4 x Front Filters 3 x Rear Filters Note: Only the items listed above are included. Light and display settings may cause slight color variations compared to the actual product. Measurement error allowance is +/- 1-3 cm.