Smartide Filter for Miele Sf-ha 50 Replacement S4, S5, S6, S8 & S4000, S5000, S6000, S8000 Active Hepa Filter Replacement hepa filter for Miele S4, S5, S6, S8 & S4000, S5000, S6000, S8000 Made of high-strength and environmental protection material 100% Compatible with Original machine Absolutely Essential for Allergy Sufferers Shipping with high strength safeguard protected box, prevent bending and compressing.