Besides the aircheckr air quality index, the widget provides comparison values, so you can better interpret your situation. Moreover, it informs you on the current main pollutant(s) and provides recommendations and hints to help yourself. In short, it provides all the air quality info in one visualisation and it is for free.
So how to use the widget? First of all, people can use the widget through our website (aircheckr.com) and check at any moment the air quality. Moreover, people can share their air quality in a nice way in a snap through the social media integration. But there is more. If people or organisations have their own website, the widget can easily be integrated in their website. See in short how to do that on https://aircheckr.com/developers. It allows to differentiate according to detail level, language (English or Dutch) and the background colour.