Miele HEPA AirClean 50 (HA50)
Proven to retain 99.99+% of dust particles, this HEPA filter is ideal for allergy and asthma sufferers and only needs to be replaced approximately once a year. Once activated, the new TimeStrip releases a red line of liquid over the course of one year, reminding users when it's time to replace their filter.
Fits: S4000/S5000/S6000/S8000/S6000/C2/S8000, and C3 canisters
Part Number: 09616280