ITEM NAME:Replacement Primary Filter for Ilife V3s V3s pro V5 V5s V5s pro Robotic Vac E9Y7 Replacement Primary Filter for Ilife V3s V3s pro V5 V5s V5s pro Robotic Vac E9Y7 High performance: the filters maintain the cleaning performance of your robot, which can sweep away tiny dust and bacteria generated during cleaning to reduce secondary air pollution.Block and reduce dust damage to sensitive parts of our machine. Maintenance: Replace the filter depending on your usage frequencey to keep your home robot operating at peak performance. It's better to replace it every 1-2 months. How do replace your filter: Take out the dirt bin. Remove the filter from dirt bin. Replace the new filter. Put the dirt bin back into its slot on top of the robot. colour: blue + White Material: plastic Package Contents: 2 * Primary Filter.2 Primary Filter. It's better to replace it every 1-2 months. How do replace your filter Remove the filter from dirt bin. Replace the new filter.