Indoor Air Quality Monitor

Hi everyone. Apologies if this is not in the right place. I want to make an Arduino based indoor air quality monitor which uses PoE for power and data, to monitor the following:

-TVOC (if possible)

I would be very grateful if someone could advise which components I should get and from where.

Hi, I don't know a lot about this subject, so I've just done some looking at what's already available to use with Arduino. The sensors below are some options and the Adafruit sites have Arduino code already available, so that's worth a look as a starting point.

It sounds an interesting project and will be good to see how you go. You'll be able to get heaps of help here once you can articulate a clear idea of your requirements and intentions.