airly integration uses the Airly web service as a source for air quality data for your location.
To generate an Airly API key, go to Airly for developers page.
To add Airly to your installation, go to Configuration >> Integrations in the UI, click the button with
+ sign and from the list of integrations select Airly. By default, the values will be taken from the Home Assistant configuration.
Airly allows 100 data updates per day. For this reason, the more Airly instances configured, the less frequent updates will be. For one configured Airly instance, data will be updated every 15 minutes, for two configured instances, data will be updated every 30 minutes, for three configured instances, data will be updated every 45 minutes, etc.