Compatibility: Compatible with Dyson CY22 DC75 CY23 CY24 CY25 DY77 vacuum cleaners High-efficiency filter: This replacement filter is made from durable and environmentally friendly materials to ensure the best performance of your vacuum cleaner. It traps up to 99.9% of dust and dirt to keep your home clean and fresh. Washable and reusable: This replacement filter is easy to install and maintain. Clean the filter once a month and replace it every 2-3 months to keep the inside of the vacuum cleaner dust-free. Effective Air Purification: The filter can filter common air dust in the air, such as dander, hair, and fine debris, preventing them from circulating in the air, creating a healthier home. Package Contents: 2 x Pre-Motor Filters.