Miele Genuine Active Air Clean filter S4 and S5 VacuumsPart # 07226150

This filter combines the Super Air Clean filter with an active charcoal cassette which absorbs odors from the dust bag - especially useful if you have pets. This filter retains 99.95% of particles down to 0.5 of a micron (only 1 & 1/200th the width of a strand of human hair), and has a lifespan of 50 hours or 12 months of use.