Our AQI is calculated hourly and updated hourly. Many other websites calculate in different time intervals.
For example, NowCast is a 12-hour average that adjusts based on a weight factor. It's important to understand the basis of other air quality data calculations to compare apples to apples.
For more information on data differences, you can click the link below: https://www.iqair.com/newsroom/airvisual-s-outdoor-data-seems-to-differ-from-other-sources-why-is-this
Choose another country or region to see content specific to your location and shop online.
IQAir Filter Subscription
AirVisual Outdoor specifications state that it monitors PM1 but we do not display it. Where can it be found?