It contains a front filter and a rear filter. Depending on use, it is recommended to disassemble and clean regularly. Efficiently filters dust and allergens; easy to wash and reusable. The front filter captures dust and protects the fan. The rear filter screens finer particles to make exhaust air cleaner. Filter efficiency for fine particles as small as PM0.3 is up to 99.99%. Front and rear filters, as well as bins, are removable and washable for improved hygiene. Automatically empties the robot dustbin after cleaning. Allows for hands-free cleaning over time. Do not wash the filter in a dishwasher or washing machine. Do not dry with a tumble dryer, oven, microwave, hot air, or fire. Avoid touching the filter surface with hands, brushes, or hard objects to prevent damage. Turn the filter cover counterclockwise to remove. Remove the front filter and/or rear HEPA filter as needed. Rinse with cold water until clean. Shake off excess water and allow to drain. Air dry for 24 hours or until completely dry before reuse. Reinstall the dry filter and close the cover securely. Compatible with Roborock S7, S6, S5, S5 Max, S4, and E models. Designed for use with S7 suction station. Color: as shown Material: plastic Package Contents: 1 x Front filter 1 x Rear filter Note: Light shooting and different displays may cause slight color variations between the image and actual item. Measurement allowance: +/- 1-3 cm.