It can be easy to remove and replace as part of routine maintenance. Often replace the filter to help make indoor air more fresh ,helps reduce household odors True HEPA Filter captures 99.97% of dust and allergens as small as .3 Micrometre such as household dust, pet dander, mold spores and plant pollens. For best results, should be replaced every 2 - 3 months. For SSR1 SSRA1 A7 a9s V8 V8s x750 X800 x785 V80 Robot Vacuum Cleaner Colour:As shown Material:plastic Package Contents: 1 * main brush 4 * filters 6 * side brushes 1 * primary filter screen 1 * cleaning brush Only the above package content, other products are not included. Note: Light 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.