HQRP Active HEPA Filter 4-Pack for Miele SF-AH50 SF-AH 50 AH 50 AH50 05996883 05996882 07226170 AirClean 50, HA 50, 09616280 AAC 50, 09616110 HEPA AirClean 50, S4000 S5000 S6000 Vac Vacuum + Coaster HQRP&reg; Four Active Hepa Filters plus HQRP&reg; Coaster; This filter is HEPA and retains 99.99% of particles down to 0.3 micron; The filter has a activated carbon layer to neutralize and absorb odors. Compatible with Original filter; 2 weeks DOA replacement warranty!