General description These washable pre-filters and post-filters are designed specifically for the Dyson V8 FOCUS Mattress Vacuum Cleaner. Made from high-quality materials, they are durable and practical, ensuring optimal performance of your vacuum cleaner while effectively reducing the penetration of dust, pollen, and other allergens into the air. Technical specifications Material: Plastic Package Contents: 3 x Pre-filters, 3 x Post-filters, 1 x Clean brush Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with Dyson V8 FOCUS Installation Simple installation; can be easily removed and replaced. Usage It is recommended to replace the filters every 2-3 months or according to your usage to maintain the vacuum cleaner's best performance.