Miele Original Active AirClean Filter with TimeStrip Filter for Miele Vacuum Cleaners

This is the Miele Vacuum Active Air Clean Filter 315583 SF-AA30 [W7-54301} The Miele AA30 Active AirClean Filter is a replacement or spare active AirClean filter for Miele models S7000-S7999, S2000-S2999, S300i-S858i. The filter features active charcoal cartridge to neutralize and absorb odours. Once activated, a TimeStrip releases a red line of liquid over the course of one year, reminding users when it's time to replace their filter.