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Maintenance and care
When to change the dustbag
Change the dustbag when the colored
marker in the airflow indicator fills the
display.
Miele dustbags are disposable and
made to be used only once. Do not
attempt to reuse.
Checking the airflow indicator
^ Attach the standard floor brush
(depending on model) to the vacuum
cleaner. Perform this test with the
floor brush only, other attachments
can affect the function of the airflow
indicator.
^ Turn the vacuum cleaner on and
select the highest power setting.
^ Lift the floor brush slightly off the
floor. If the marker completely fills the
indicator window, the dustbag needs
to be changed.
20
How the airflow indicator works
The airflow indicator is designed to
show when the bag is full of common
household dust and measures the
amount of air flow through the dustbag.
Normal household dust is a mixture of
dust, hair, carpet fluff, threads, sand,
etc.
However, if fine dust, such as drill dust,
sand, plaster or flour is vacuumed, the
pores of the dustbag may become
blocked. The marker will indicate that
the bag is "full" even when it is not. The
dustbag should be changed as the
suction power is greatly reduced.
If the bag is bulging with pet fur, hair,
carpet fluff, etc. the indicator may not
register "full". This is because the air
flow of the dustbag may still be high
enough not to activate the marker to
show maximum. The dustbag should
still be changed.
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