Philips Support

What do my Philips Air Purifier's lights mean

Published on 04 April 2023

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:

IAI (Allergen levels)

PM2.5 for ACxxxx/20;

(Standard for fine particulate matter) 

For Thailand, Indonesia, India, it is based on the Chinese standard

India (effective date: YYWW2030)

1

1~12

1~20

2

13~23

21~40

3

24~35

41~60

4

36~48

61~80

5

49~61

81~100

6

62~75

101~120

7

76~87

121~160

8

88~101

161~200

9

102~115

201~250

10

116~132

251~300

11

133~150

301~350

12

151~500

350~500


To check which standard your air purifier uses, see the image below. If the number is 2030 (year 2020, week 30) or higher, the air purifier uses the new Indian standard. If the number is below 2030, for example 1842, it uses the Chinese standard.

Philips Air Purifier's air quality ring

Air purifiers with a quality light

In this case, your air purifier indicates the current quality of the air by displaying a red or green light.

In the first few minutes after you select the SmartAir Control function, the air quality indicator will flash red to indicate that the air quality sensor is measuring the ambient air quality. After approximately 5 minutes, the air quality indicator lights up green if the air quality is good or lights up red if the air quality is poor.

Note: The SmartAir Control function is only applicable for purifiers AC406x. For these purifiers, this function automatically adjusts speed settings according to the current air quality.

The information on this page applies to the following models: AC4064/00 .

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