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AirVisual Knowledge Base

IQAir News

Reasons include: no air quality monitoring measurements points, no PM2.5 measurement, not enough data Read More >

Access to our air quality database is hoped to have a big impact in tackling the air quality crisis. Read More >

Our rankings represent annual average concentrations taken from multiple sites & data is validated Read More >

Includes vehicles, power plants, industry, households, agriculture, and biomass burning. Learn more. Read More >

When a Node/Pro activates its internal Wi-Fi hotspot, a user can configure Wi-Fi through mobile app. Read More >

There are many places around the world that lack air quality monitoring data granularity. Learn more. Read More >

By nature, filters lose some degree of efficiency after prolonged exposure to air pollution. Read More >

Some phones display the Chinese AQI by default while others use the US AQI. Defaults can be changed. Read More >

Adding your Pro to the app and/or your online profile lets you access your data remotely, and more. Read More >

The notifications on the AirVisual icon represent the Air Quality Index. Learn more. Read More >

If not connected to Wi-Fi, or no outdoor station selected, PM2.5 and CO2 measurements are displayed Read More >

There may be a problem with the data source for the station you are following. Learn more. Read More >