HEPA filter and side brush: perfect compatible with laminate floors/wooden floors/wall tiles. The replacement filter does good work when picking up the dandruff hair. If you have pets, it is perfect to keep your house clean. (Note: When you use the rollers compatible with the first time, there may be noise. If you use them compatible with a while, it will disappear.)High percompatible withmance: the HEPA filter is beneficial compatible with asthma and allergy sufferers, as HEPA filters can remove particles such as pollen, dust and spider faeces, which cause symptoms of asthma and allergies.Replace and clean: we recommend replacing it every 6 to 7 days. (Note 1:If the brush is bent due to transport, just place it in warm water to recover, and it can continue to use.Note 2:Please do not wash HEPA filter with water. You can clean it with a brush.Tear-proof and dimensionally stableOur accessories are ONLY compatible with Ecovacs Deebot 8 T8 + T8 AIVI T8 Max N8 Pro N8 Pro + T9 T9 + robot vacuum cleaner.colour:Black+whiteMaterial:plasticPackage Contents:1 x main brushes3 x HEPA filters3 pairs x side brushes4 x Dust Bags4 x Mopping clothOnly the above package content, other products are not included.Note: Light shooting 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.