You can use the /quality command, it will give you a prompt to send your location, and it will reply with your location's current AQI status.
Yes! You can use the /search command, to search using city name, it will give you a list of possible matching results, pick the one which is correct, and you will receive the AQI status for that city.
Example usage: /search New York
The bot also includes a guide for you to use in case the AQI status of your city is above average. It lists down a set of Dos and Don'ts that you can follow for your well-being in case of bad air quality.