High-efficiency HEPA filter captures 99.97% of fine particles and debris for cleaner air. Compatible with for Sweeping Robot L20 Ultra L30 Ultra, ensuring a and optimal performance. Dust box easy to install and replace, making maintenance hassle-free and convenient. HEPA filter construction designed to withstand daily use and extend the life of your vacuum cleaner. Keep your home spotless and improve air quality with this essential vacuum accessory.Regular replacement can improve equipment functionality and performance Color: As shown Material: plastic Package Contents: 1 x Dust box 1 x HEPA filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.