I’ve just written a post about my recent indoor air quality measurement experiments (focusing on my bedroom):
http://www.quantifiedbob.com/2015/11/understanding-my-indoor-environment-part-1-air-quality/
As I mentioned in a prior reply, I began by using AirPi, but then switched to Foobot (formerly Alima), which has an API so I can create graphs like these:
Unfortunately, neither device provides all of the readings I am looking for, so in the near term I will need to pull in/combine data from both devices.