Miele SF-HA 60 HEPA AirClean Filter For BoostDESCRIPTION The Miele HEPA AirClean Filter with TimeStrip Ideal for allergy sufferers, it traps fine dust, allergens, and viruses for cleaner, healthier air. Captures 99. 95% of viruses, germs, and particles (HEPA Class 13, DIN EN 1822 2011) Perfect for allergy sufferers filters even the finest dust and allergens TimeStrip change indicator shows when to replace Replace yearly to maintain optimal performance Designed for Boost CX1 vacuum cleaners