Philips 2000i Series Manual page 5

PM2.5 is a scale for measuring real-time air quality. Its values vary from 0 to 500.
The PM2.5 indication is connected to your Philips Purifier's air quality ring light to inform you
in real time about the quality of the ambient air.
The different colours indicate the following:

Blue: good.

Blue-Violet: fair

Red-Purple: unhealthy

Red: very unhealthy
What do my Philips Air Purifier's lights mean
If you're wondering what the air quality lights or ring lights of your Philips Air Purifier mean,
please find out here.
Note: All images shown below are generic representations only; there can be some differences
among specific appliances.
Air purifiers with air quality ring lights
You can see the quality of air your Philips Air Purifier is cleaning using the air quality lights (see
image below). The different colours indicate the following:

Blue: good

Blue-violet: fair

Red-Purple: unhealthy

Red: very unhealthy
The following table contains further details for each colour. The second column for Thailand,
Indonesia and India is based on the Chinese standard. The third column is only for India and takes
effect from week 30, year 2020:
PM2.5 for ACxxxx/20;
(Standard for fine
particulate matter)
For
Thailand,
Indonesia,
India, it is
based on
IAI the
(Allergen Chinese
levels) standard
1 1~12
India
(effective
date:
YYWW：
2030)
1~20