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13EN
English
Filter alert light
status
Action
A3 displays on the
screen
Replace the
NanoProtect filter
Series 3 (FY2422)
C7 displays on the
screen
Replace the
NanoProtect filter
AC (FY2420)
A3 and C7 display
on the screen
alternately
Replace both
filters
1 Turn off the air purifier and unplug
from the wall outlet.
2 Take out the used air filter according
to the filter alert light status
displayed on the screen (fig.|).
Discard used filters.
Note
• Do not touch the pleated filter
surface, or smell the filters as they
have collected pollutants from the
air.
3 Remove all packaging material from
the new filters (fig.f).
6 Replacing the
filters
Filter replacement
indicator
This air purifier is equipped with a
filter replacement indicator to make
sure that the air purification filter is in
optimal condition when the air purifier
is operating. When the filters need to be
replaced, the filter code displays on the
screen (see Filter alert chart).
If the filters are not replaced in 14 days,
the air purifier will stop operating and
automatically lock to protect the air
quality in the room. Replace the filters
as soon as possible according to the
filter code.
Replacing the lters
Note
• The air purification filters are not
washable nor vacuum cleanable.
• Always turn off the air purifier and
unplug from the electrical outlet
before replacing the filters.
• Do not clean the filters with a
vacuum.
• If the pre-filter is damaged, worn or
broken, do not use. Visit
www.philips.com/support.
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