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AirVisual Knowledge Base

IQAir News

Learn how to claim and promote your PurpleAir sensor by creating a contributor profile. Read More >

Update frequency, and data source are reasons that air quality indices can differ. Read More >

The language of the AirVisual app is dependent on the language of the phone. Learn more. Read More >

AirVisual's data validation system is cloud-based and driven by machine learning. Read More >

IQAir’s Privacy Policy describes how IQAir collects, uses, shares, and stores personal information. Read More >

The China and U.S. AQI systems use the same formula but have different AQI thresholds. Learn more. Read More >

AQI (Air Quality Index) measures air pollutant concentration to warn of health risks. Learn more. Read More >

When not being powered for some time, the Air Visual’s battery may not charge normally. Learn more. Read More >

Proper ventilation and air purifying can help lower CO2 levels that can spike at night. Learn more. Read More >

An asterisk may be visible on some location’s AQI. Learn more. Read More >

Here are some reasons that AirVisual and AirNow may show different air quality numbers. Learn more. Read More >

A share code lets others access your AirVisual Node/Pro’s data. Learn more. Read More >