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    What does the PM2.5 indicator in my Philips Air Purifier mean?

    Updated on 2022-06-08

    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 colors indicate the following:

    • Blue: good.

    • Blue-violet: fair

    • Red-Purple: unhealthy

    • Red: very unhealthy

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