- Compatibility: This pre-motor filter replacement is designed specifically for Dyson Big Ball models CY22, CY23, CY24, CY25, CY26, CY27, CY28, DY75, DY77, and DY78, ensuring a perfect fit for your vacuum cleaner. - Enhanced Filtration: Constructed from high-efficiency materials, this filter effectively captures dust and other particles, preventing larger debris from entering the motor. This protection helps extend the lifespan of your vacuum cleaner. - Washable & Reusable: Simply wash the filter in warm water and allow it to air dry completely before reuse. To maintain optimal performance, it is recommended to replace the filter every 4-6 months. - High-Performance Design: The two-in-one design of this premium vacuum filter efficiently blocks fine particles and floating dust. Installation is straightforward, with no additional tools required. - Practical Applications: Ideal for households with pets to capture hair and dander, effective for allergy sufferers by reducing airborne allergens, and perfect for maintaining a clean environment in high-traffic areas. - Durable Material: Made from robust materials that ensure longevity and consistent performance, this filter is an essential component of your cleaning routine. Upgrade your Dyson Big Ball vacuum cleaner with this reliable pre-motor filter replacement to enhance cleaning efficiency and maintain a healthier home environment.