6
- Remove the front of
the appliance by
pulling it towards you
on one side (fig. 10).
Cleaning the prefilter
Clean the prefilter at least once every two
months and more often if the appliance becomes
noisier and if it is used in a room in which people
smoke.
- Remove the prefilter (fig. 11).
- Clean the prefilter by washing it (fig. 12) or
vacuum cleaning it.
- If you have used washing-up liquid, rinse the
filter with clean water (fig. 13).
- Let the filter dry naturally (fig. 14) before you
put it back into the appliance.
Checking/replacing the HEPA filter
- To check if the HEPA filter needs to be
replaced, compare the colour of the HEPA filter
with the shades on the HEPA filter replacement
indicator (F) (fig. 15).
- If the colour of the filter corresponds to the
darkest shade on the HEPA filter replacement
indicator, replace the HEPA filter (fig. 16).
- New HEPA filters are available from your
retailer under number HR 4940.
Checking/replacing the active carbon
Check if the carbon
granules need to be
replaced by checking
the date on the white
sticker (fig. 17) and
comparing it with the
recommended
replacement interval
that applies to your
individual use of the
appliance (see table
below).
The table shows that, depending on the level of
air pollution in the room in which the air cleaner
has been placed, the carbon granules should be
replaced every 1.5 to 8 months.
If used against tobacco smoke: replace every:
average of 5 cigars/cigarettes a day 6 months
average of 10 cigars/cigarettes a day 3 months
average of 20 cigars/cigarettes a day 1.5 month
If used against pet, cooking, replace every:
painting and other smells or gases:
average use of 5 hours a day 8 months
average use of 10 hours a day 4 months
average use of 20 hours a day 2 months
