Philips AC4550 - Turning on and off

English
31EN
1 Put the plug of the air purier in
the wall outlet.
» The air purier beeps.
» All lights go on once and
then go out again.
2 Touch the button to switch on
the appliance.
» The air purier operates
under the general mode by
default.
» When the air purier is
warming up, " " displays
on the screen.
» After 30 seconds, the air
purier shows the highest
level among PM2.5/Gas/
IAI on the screen. The air
quality sensor automatically
selects the appropriate air
quality light color.
Gas level Air quality light
color
L1 Blue
L2 Blue-purple
L3 Purple-red
L4 Red
IAI
The professional-grade AeraSense
sensor detects the level of indoor
air allergen and with numerical
feedback from 1 to 12 the potential
risk level of indoor air allergens can
be displayed. 1 indicates best air
quality.
IAI level Air quality light
color
1-3 Blue
4-6 Blue-purple
7-9 Purple-red
10-12 Red
Turning on and o
Note
• Always place the air purier on
a stable, horizontal, and level
surface with the front of the
unit facing away from walls or
furniture.
• For optimum purication
performance, close doors and
windows.
• Keep curtains away from the air
inlet or air outlet.
• Do not block the inlet or air
outlet with clothing.