This is a _very_ cool project that just landed on @crowdsupply. Had I not been laid off last week (hire me! #GetFediHired) I'd definitely order one.
"Using its high-quality sensors, Air Lab measures CO2, temperature, relative humidity, air pollutants (VOC, NOx), and atmospheric pressure. The device can record measurements for multiple days, which you can analyze directly on-device—no computer or smartphone required.”