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AirVisual Knowledge Base

IQAir News

There are significant differences between the US AQI and WHO air quality guidelines. Learn more. Read More >

It is possible for a large particle, such as a piece of dust, to get stuck in the sensor chamber. Read More >

The Node/Pro uses a light scattering laser sensor for PM2.5 measurements; an infrared lamp to measure CO2. Read More >

The AirVisual app provides the option to add an AQI widget display to your phone home screen. Read More >

Learn how to correct issues with using the AirVisual app on the Apple Watch Read More >

Samba is the standard Windows interoperability suite of programs for Linux and Unix. Learn more. Read More >

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 >