General description This CSPARKV 3 Pack Replacement Pre-Motor Filter is designed for various Dyson Big Ball vacuum cleaner models, ensuring optimal performance and cleanliness in your home. It effectively captures up to 99.9% of dust and dirt, contributing to a healthier living environment. Technical specifications Compatible Models: Dyson Big Ball CY18, CY22, CY23, CY24, CY25, CY26, CY27, CY28, DY75, DY77, DY78, DC75, DC77, DC78 Replacement Part Number: 967371-01 Usage Wash the filter with warm water and allow it to air dry completely before reuse. Clean the filter once a month. Replace the filter every 2 to 3 months to maintain vacuum performance. Other information Package Contents: 3 x Pre-motor HEPA filters, 1 x cleaning brush