Yes, we also have a popular open-hardware, open-source indoor air quality monitor that measures CO2, PM, Temperature and Humidity. You can also get an optional TVOC module that can measure chemicals and NOx.

This version we currently only sell as a pre-soldered kit [1] but it is very easy to assemble (no need to solder anything) and you just need to plug a few modules together and close the enclosure with a few screws.

[1] https://www.airgradient.com/kits/