Using.the.air.purifier; Understanding The Air Quality Light - Philips AC3858/86 User Manual

4 Using the air purifier

Understanding the air quality light

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 particle sensor selects
the color that corresponds to the surrounding air quality of
airborne particles.
The color of the air quality light is determined by the
highest risk index among IAI, PM2.5, and Gas readings.
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.
PM2.5
AeraSense sensing technology accurately detects and
quickly responds to even the slightest particle change in
the air. It provides you with reassurance with real-time
PM2.5 feedback.
Most of the indoor air pollutants fall under PM2.5 –
which refers to airborne particle pollutants smaller
than 2.5 micrometers. Common indoor sources of fine
particles are tobacco smoke, cooking, burning candles.
Some airborne bacteria and the smallest mold spores, pet
allergen and dust mite allergen particles also fall under
PM2.5.
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.
EN
8
Air quality light color Air quality level
Blue Good
Blue-purple Fair
Purple-red Poor
Red Very poor
IAI level Air quality light color
1-3 Blue
4-6 Blue-purple
7-9 Purple-red
10-12 Red
PM2.5.level Air quality light color
≤12 Blue
13-35 Blue-purple
36-55 Purple-red
>55 Red
Gas level Air quality light color
L1 Blue
L2 Blue-purple
L3 Purple-red
L4 Red