Miele Active AirClean SF-AA 50 Filter

Mieles Active AirClean filterhas anactive charcoal cartridgethat completelyneutralizes and absorb odors. Thisis the perfect filter if you have pets running through your house.Once theActive AirCleanfilter isactivated, a TimeStrip releases a red line of liquid over the course of one year, reminding users when its time to replace their filter.