When To Change The Filterbag; How The Filterbag Change Indicator Works - Miele HS11 Operating Instructions Manual

Every packet of original Miele FilterBags
contains four bags, one AirClean ex-
haust filter, and one motor protection fil-
ter. Original Miele multipacks contain 16
FilterBags, four AirClean exhaust filters,
and four motor protection filters.
Original Miele exhaust filters can also
be purchased separately from your
Miele dealer or Miele Technical Service.
Please quote the model number of your
vacuum cleaner when ordering to make
sure you get the correct filter. You can
also order all accessories via the Miele
web store.

When to change the FilterBag

Change the FilterBag when the color
marker in the FilterBag change indicator
turns red.
FilterBags are disposable and in-
tended to be used only once. Dis-
pose of the entire FilterBag. Do not
attempt to re-use. Blocked pores re-
duce the efficiency of the vacuum
cleaner.
Checking the FilterBag change indi-
cator
 Attach the standard adjustable floor-
head to the vacuum cleaner.
 Switch the vacuum cleaner on and
select the highest power setting.
 Lift the floorbrush off the floor a little.
How the FilterBag change indicator
works
The FilterBag change indicator is set for
normal household dust. This generally
contains a mixture of dust, hair,
threads, carpet lint, grit, etc.
However, if the cleaner has been used
to vacuum up fine dust, such as plaster,
brick dust, cement or flour, the pores of
the FilterBag will become blocked very
quickly.
This affects the air permeability of the
bag, and the marker will indicate that
the bag is "full" even when it is not. If
this happens you must still change the
FilterBag because suction power will be
greatly reduced by blocked pores in the
FilterBag.
If, on the other hand, a large amount of
hair and carpet lint which typically con-
tains a lot of air is vacuumed up, the in-
dicator may fail to react even though
the bag is full. You should still change it.
Both these extremes can occur.
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