Made of high-strength and environmentally friendly material. Easy to install. The filter screen helps maintain the cleaning performance of the sweeper and reduces the penetration of dust, pollen, and other allergens into the air. It is recommended to replace the filter every 1 to 2 months. Care Instructions: 1. Wash the filters regularly using warm, soapy water. 2. Ensure the filters are completely dry before use (allow 24 hours). Compatible with models: TY9879, TY9890, TY9958, TY9990, RH9958WO, RH9959WO, RH9878WO, RH9879WO, RH9890WO. Color: As shown in picture. Material: Plastic. Package Contents: 5 x Filter Note: The package includes only the items listed above. Other products are not included. Lighting and display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.