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Philips AC4550 - Changing the Fan Speed

Philips AC4550
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English
33EN
Auto allergen mode
The extra-sensitive Auto allergen
mode is designed to react to even
a small change in allergen levels in
the surrounding air.
Touch the Auto mode button
to select the Auto allergen mode.
» The IAI level displays on the
screen.
Changing the fan speed
There are several fan speeds
available.
When using the manual fan
speed settings, the purier will still
monitor the air quality, but it will
not automatically adjust the fan
speed if it detects changes in the air
quality.
Sleep mode ( )
In sleep mode, the air purier
operates quietly at a very low
speed.
Touch the fan speed button to
select the sleep mode.
» The " " displays on the
screen for 3 seconds and
then disappears.
» The sleep mode indicator
goes on.
» After 30 seconds, all the
icons are o, only the sleep
mode indicator goes on.
Manual
Touch the fan speed button
repeatedly to select the fan
speed you need (speed 1 or
speed 2):
» After 3 seconds, the display
shows the previous mode.
Tip
If the air quality light lights up
blue, it indicates that the air
quality is good, and you can
select a lower fan speed. On
the other hand, if the air quality
light lights up red-purple or red,
it indicates that the air quality is
unhealthy, and you can select a
higher fan speed to purify the air
more quickly.

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