Customer Support FAQ General Where do the air quality thresholds come from?

Where do the air quality thresholds come from?

The indoor air quality thresholds are based on several regulatory values recommended by United States Environment Protection Agency (US EPA) and the World Health Organization (WHO).
For outdoor ambient air, the Blueair Friend app uses the thresholds from the US EPA Air Quality Index (AQI).

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Where do the air quality thresholds come from?

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