Compatibility - The Replacement Filters Fit For P 20 Robot Vacuum,You Will Get 6 Pcs Replacement Filers To Meet Your Daily Use Needs. | | Maintenance - We Recommend That You Replace The Filters Every 2-3 Months To Keep The High Performance Of P 20 | | Washable Reusable - The Filters Can Be Washed, Please Make Sure It'S Completely Air Dryed Before Reusing Them. | | Easy To Replace- Snap Into Place For Quick And Effortless Routine Replacement Without Tools. | | High Efficeincy Filtration, Help Remove Hair, Dirt, And Debris From Carpets,Hard Floor. | |