Using The Appliance; Understanding The Air; Quality Light - Philips AC4558/80 User Manual

4 Using the
appliance

Understanding the air

quality light

Air quality light
color
Blue
Blue-purple
Purple-red
Red
The air quality light automatically
goes on when the air purifier is
switched on, and lights up all colors
in sequence. After approximately
30 seconds, the air quality sensors
select the color that corresponds
to the surrounding air quality of
airborne particles.
The color of the air quality light is
determined by the highest level
among IAI, Gas and PM2.5 readings.
EN
8
Air quality level
Good
Fair
Poor
Very poor
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
1-3
4-6
7-9
10-12
GAS
With an advanced gas sensor, a
display ranging from L1 to L4 shows
the level change of potential harmful
gases (incl. VOC, odor, etc.) detected.
L1 indicates best air quality.
Gas level
L1
L2
L3
L4
Air quality light
color
Blue
Blue-purple
Purple-red
Red
Air quality light
color
Blue
Blue-purple
Purple-red
Red