Fine preliminary Filter traps larger particles in the air like dust, hairs, pet fur, lint and more High-efficiency activated carbon filter absorbs household odors from pets, cooking, smoking, wildfire, and harmful VOC's Replacement Filter: A dirty filter will greatly reduce suction power. Depending on the vacuuming frequency and amount of dirt cleaned, for best performance, change the filter at least every 3 to 6 months. Easy to install and remove, no need to spend extra energy and time. Easy to replace and disposable, no tools required. replace filters every 6 months for optimal performance. Compatible Models:For KK Robot Color: White & Black Material: plastic Package Contents: 10 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.