Over the past few years I’ve been having lots of fun playing with Home Assistant and home automation in general. One of the things which is underdocumented but kind of interesting is how to get air quality monitors connected to Home Assistant. I currently use two different types of air quality monitors, both made by Qingping. There are, of course, alternatives, but the Qingping devices are reasonably priced when they’re on sale and they tend to look pretty nice.