Maintenance and care
When to change the exhaust filter
Always change the Active HEPA filter when the exhaust filter indicator lights up. It is designed to light up after approx. 50 hours of operation which is the equivalent to about a year of average use. It should be replaced sooner if it is obviously soiled or no longer effective. The vacuum cleaner can still be used with the exhaust filter indicator lit up. However, the suction power will be reduced as will the effectiveness of the filter if it is not replaced in good time.
You can replace the Active HEPA filter supplied with the vacuum cleaner with one of the other Miele exhaust filters if you wish (see "Replacing one type of exhaust filter with another").
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