Miele Active AirClean Filter With TimeStrip - SF AA 50Description Active AirClean filter with TimeStrip for effective filtration of unpleasant odours. With active charcoal: Ideal for households with pets or smokers Safely seals in the dust With timestrip filter change indicator To maintain appliance performance, change the filter once a year Contents: 1 filter incl. for Complete C2, Complete C3, Compact C1, Compact C2 Active AirClean filter. Active AirClean filters for good indoor air. Also helps