Description If the filter is too large or too small, it will affect the normal work of the sweeping robot. Perfectly compatible with Roborock robot vacuum cleaner, Product quality control is strict, the filter element is very close to the original in appearance and quality, it is a better choice to replace the original accessories. Avoid low-quality filters that cause "mistakes" in robot vacuums There are sealing sponges on both sides of the filter to prevent dust from entering. The filter screen is effectively sealed to minimize pressure loss and maintain strong suction. It is recommended to replace the filter every 1-3 months to achieve better filtering effect. The filter can be rinsed under running water to achieve the effect of repeated use. Note: After rinsing, it must be completely dry before continuing to use. Package Included: 2 * Filter Accessory Note: 1. Please allow a little error due to manual measurement. Please make sure you don't mind before bidding. 2. The color may vary due to different monitors, please understand. Hello, please pay attention to your delivery address when purchasing products. If your receiving information (such as: name, street, house number, doorbell/email without name, etc. is incorrect, the order will not be delivered correctly.)