Miele HS20 - How the exhaust filter timestrip change indicator works

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 Remove the indicator strip from the
HEPA AirClean exhaust filter.
 Press the timestrip® filter change in-
dicator on the HEPA AirClean exhaust
filter.
After approx. 10–15 seconds, a thin red
line will appear in the left-hand side of
the display.
 Fit the exhaust filter compartment
flap carefully in the bottom of the ex-
haust filter compartment and close
the flap, making sure it clicks into po-
sition.
How the exhaust filter timestrip®
change indicator works
The exhaust filter timestrip® change in-
dicator shows the remaining functional
life of the exhaust filter. After approx. 50
operating hours the display will be com-
pletely filled with red. 50 operating
hours equates to approximately one
year of use.