IQAir is a Swiss air quality technology company, specializing in protection against airborne pollutants, developing air quality monitoring and air cleaning products. IQAir also operates AirVisual, a real-time air quality information platform. As of February 2020, it had around 500 employees worldwide, 150 of them in China, and its most important markets were Asia and North America.
How does IQAir measure air quality?
IQAir AirVisual platform AQI readings are based on the U.S. Environmental Protection Agency (EPA) National Ambient Air Quality Standards (NAAQS) to calculate AQI and to attribute code color. AirVisual Series air quality monitors measure PM2. 5, PM1, PM10, and carbon dioxide levels and use PM2.
Top 10 most-polluted cities worldwide:
Source: www.iqair.com
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