Active HEPA filter suitable for Miele vacuum cleaners S4 and S5. The filter replaces the carbon filter SF-AAC50. Compatible with Miele vacuum cleaner series: Compact C1, Compact C2, Complete C2, Complete C3, as well as the S4000 to S4999, S5000 to S5999, S6000 to S6999 and S8000 to S8999 series.