Philips AC4550 - Replacing the air purification filter; Understanding the healthy air protect lock; Replacing the filter

38 EN
Replacing the lter
Note
• The air purication lter is not
washable or reusable.
• Always turn o the air purier
and unplug from the electrical
outlet before replacing the
lters.
• Do not clean the lters with a
vacuum.
• If the pre-lter is damaged,
worn or broken, do not use.
Visit www.philips.com/support
or contact the Consumer Care
Center in your country.
Filter alert light
status
Action
A3 displays
on the screen
and the lter
replacement
alert goes on.
Replace the
NanoProtect
lter Pro S3
(FY4152)
6 Replacing the
air purification
filter
Understanding the
healthy air protect lock
This air purier is equipped with a
lter replacement indicator to make
sure that the air purication lter is
in optimal condition when the air
purier is operating. When the lters
need to be replaced, the lter code
displays on the screen and the lter
replacement alert ( ) lights up red.
If the lters are not replaced in time,
the air purier will stop operating
and automatically lock to protect
the air quality in the room. Replace
the lters as soon as possible
according to the lter code.