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filter, is trapped by the main micro filter.
This also serves as a prefilter and protects
the downstream filter elements.
C FILTER UNITS
The MICRO VARIO filter cassette serves to
accommodate a filter unit. One of these is
indispensable, i.e. the vacuum cleaner must
not be used unless a filter unit has been
installed. The MICRO VARIO filter cassette
can be used with any one of the following
types of filter unit:
Motor protection filter (colour: black)
This filter ensures that no coarse dirt gets
into the housing if the paper filter is defective
and no main micro filter has been installed
in the cassette. If required, this unit can be
cleaned with water, dried and reinstalled
in the cassette.
Activated carbon filter (colour: grey)
This is a high quality, activated charcoal
filter unit which is intended, in particular, to
trap any smelly substances contained in
dust and dirt, thus making an important
contribution to improved air quality
(recommended for households with pets).
High efficiency submicron particulate air
filter (colour: green)
This high performance filter traps the finest
particles (particulates) of 0.3 microns in
size, almost entirely. The filtration effect is
so good that the air coming out of the
machine contains less dust than the air in
the room. The HEPA filter should always
be used when vacuum cleaning must be
carried out to demanding standards of
hygiene and room air purity.
Micro vario combination filter (colour: red)
This filter combines the effects of an
activated carbon filter with those of a high
efficiency submicron particulate air filter.
D Micro exhaust air filter
This filter is not located in the filter
compartment (dust compartment), but
downstream of the motor under the exhaust
14
air grille, it serves the purpose of trapping
the dust resulting from the abrasion of the
motor carbon brushes.
Replacement intervals
In order to ensure consistently efficient
suction and dust filtration and to minimize
smells, we recommend that filters and filter
units be replaced at the intervals specified
below or at the latest when the filter
replacement display indicates that this is
due, even though a new paper filter and
micro filter may have been installed.
• Main micro filter / exhaust air micro filter
After the contents of a paper filter pack
have been used (you will find a
corresponding replacement filter in the
paper filter pack)
• Activated charcoal filter / micro vario
combination filter After 6 to 12 months,
depending on use.
• High efficiency particulate air filter After a
period of 18 months to 2 years (provided
the paper and main micro filters are
regularly replaced).
Opening of the dust compartment
lid
For exchange of
filter, press
opening key and
raise dust
compartment lid
until it snaps in.
Exchange of paper filter / Micro-
Power-Filter
Press the dust compartment release button
and raise the lid. Slightly raise the used
filter by the swivelling holder, pull off the
filter (the filter opening is automatically
closed) and dispose of, unfolded, in the
waste bin.
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