General description Made of high-strength environmentally friendly materials, this washable HEPA filter effectively blocks most dust down to 0.3 micrometers. It helps maintain the cleaning performance of your sweeper while reducing the penetration of dust and other particles into the air you breathe. The fine preliminary filter traps larger particles such as dust, hair, pet hair, and lint. Technical specifications Material: Plastic Color: White + Gray Package Contents: 4 x HEPA Filter Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with T10 Compatible with T20, T20 Pro Compatible with T30, T30 Neo Compatible with R10, R10 Pro Compatible with R20 Compatible with G9, G10 Installation Easy to replace and disposable, no tools required. Usage It is recommended to replace the filters every 2 to 3 months depending on the frequency of use for optimal performance. Replace the filters every 6 months for best results. Other information Note: Light reflection and