Fully compatible: V11 replacement filter, spare part # DY-970013-02. Excellent quality. : Adopting improved technology, the quality is the same as the original filter element. It can help you to make better use of the vacuum cleaner. Cleaning: In order to keep the vacuum cleaner in good condition, it is recommended clean the filter once a month and replace the filter every 3 months. After cleaning, dry thoroughly. the air before reinstalling the vacuum cleaner. Effective purification: the filter screen can effectively filter dust and pollen, avoid secondary pollution caused by the use of vacuum cleaners and bring you a fresh environment. Customer Service: If you have any questions about the product model or encounter any problems while using the product, please feel free to contact us. contact us. In the package: 2x V11 filter 1x cleaning brush