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15EN
English
Filter alert light
status
Action
A3 displays on the
screen
Replace the
NanoProtect
True HEPA filter
(FY2422)
C7 displays on the
screen
Replace the
NanoProtect
Active Carbon
filter (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).
4 Place the new filters into the air
purifier (fig.g).
5 Put the plug of the air purifier in the
wall outlet.
6 Touch and hold the reset button
for 3 seconds to reset the filter
lifetime counter (fig.}).
Note
• Wash your hands after changing a filter.
• This air purifier has no other user-
serviceable parts. For assistance, call
1-866-309-8817.
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 HEPA and AC air filters are not
washable or reusable.
• 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 or call
1-866-309-8817 for assistance.
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