AQICN is a brand that provides real-time air quality information to individuals. They offer a comprehensive and up-to-date Air Quality Index (AQI) for cities around the world, including Beijing, Shanghai, Guangzhou, Chengdu, Hong Kong, and Nanjing. The AQI measures various pollutants such as PM2.

5, PM10, O3, NO2, SO2, and CO, allowing users to understand the air quality in their area. Additionally, AQICN provides air quality forecasts, allowing users to stay informed about future conditions. They also offer a detailed historical data section and air quality rankings for cities.

In order to make their information easily accessible, AQICN offers a range of widgets and plugins that can be downloaded for various devices such as iPhones, iPads, Android devices, Windows devices, and Symbian devices. They also provide home air purifiers, protection masks, personal air quality monitors, DIY air sensors, and professional air quality monitoring stations for those looking to improve their indoor air quality. Whether you're concerned about your own health or the environment, AQICN is a trusted brand that provides the necessary information and products to help you make informed decisions