Compatible Models : Cordless Vacuum Cleaner for Proscenic P10 / P10 Pro / P11 / P11 Smart / Ultenic U11. [Dust Removal] The washable and reusable HEPA filter removes dust and dirt from your home, providing clean and fresh air for your daily life. The cordless vacuum cleaner for Proscenic P10 / P10 Pro / P11 / P11 Smart / Ultenic U11 is perfectly compatible. Washable and reusable : After use, it can be washed and reused. Can be dried after cleaning and must dry before next use. We recommend changing a new filter every 3 to 4 months, which is the best maintenance for the machine. Efficient Filtration : Effectively filters 99.98% of dust and dirt: Our filter adopts an excellent design, the vacuum filter can capture floating dust, pet dander, etc., which can provide you with a clean and comfortable environment to enjoy fresh air. Package Contents : 1 x HEPA Filter