General description 100% brand new and high quality HEPA Pre Filter designed for Dreame T10, T20, T30, and Xiaomi G9, G10 Vacuum Cleaners. Made of high-quality materials, this durable and washable filter effectively captures fine dust, preventing dust, pollen, and other allergens from entering the air you breathe. Technical specifications Type: Vacuum Cleaner Parts Material: Plastic Color: As shown Package Contents: 12 HEPA Filters Measurement allowed error: +/- 1-3 cm Installation Easy to remove and replace as part of normal maintenance. Usage It is recommended to replace the spare parts every 2 to 3 months to maintain optimal performance of the vacuum cleaner.