A. Good performance: Made of high-strength and environmentally friendly materials, it is relatively easy to install and disassemble, with good quality and durability. The sturdy materials are less likely to affect the operation of the vacuum cleaner, so there is less need to worry about damaging the machine. After using it, the cleaning effect can be improved. B. Main functions: The high-efficiency air filter (HEPA) meets certain standards, which can enhance the suction and performance of your V11 model vacuum cleaner to some extent and effectively remove a high proportion (about 99.97%) of dust and dirt in your home. C. This rear filter is suitable for wireless V11 vacuum cleaners, V11 powered vacuum cleaners, and V11 pet vacuum cleaners. It can be compared with the product with the part number 970013 - 02. D. Vacuum cleaner accessories are convenient for removing dust, dirt, and debris from corners and edges. These components are relatively durable and easy to install, making the cleaning work easier. E. Washable high-efficiency air filter: It is recommended to wash it approximately once a month and replace it every 3 - 6 months to help ensure the vacuum cleaner maintains a relatively high - performance operation. F. Material: Plastic G. Color: Purple H. Package contents: - 2 filters - 1 cleaning brush Only the above package contents are included, and other items are not included. I. Precautions: Light and different displays may cause a slight difference between the color of the product in the picture and the actual item. A measurement error of plus or minus 1 - 3 centimeters is acceptable.