Miele's Active AirClean filters feature an active charcoal layer to neutralize and absorb odors. 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.
Miele's Active AirClean filters feature an active charcoal layer to neutralize and absorb odors. 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.