I got this one https://www.co2meter.com/collections/desktop/products/co2mini-co2-indoor-air-quality-monitor https://www.co2meter.com/collections/desktop/product

I got this one https://www.co2meter.com/collections/desktop/products/co2mini-co2-indoor-air-quality-monitor https://www.co2meter.com/collections/desktop/products/co2min... from Amazon, slightly cheaper than the manufacturer's site. It only measures CO2 and temperature, but it has a usb connection and there's actually several Python libraries https://github.com/vfilimonov/co2meter https://github.com/vfilimonov/co2meter https://github.com/heinemml/CO2Meter https://github.com/heinemml/CO2Meter If you want other measurements, e.g. pm25, it looks like they have sensors for that but I don't know if you can grab the data from them