Vaisala has some air quality monitors, although they seem more oriented towards outdoors use? https://www.vaisala.com/en/products/weather-environmental-sensors/

Vaisala has some air quality monitors, although they seem more oriented towards outdoors use? https://www.vaisala.com/en/products/weather-environmental-sensors/air-quality-transmitter-aqt530-urban-industrial-systems https://www.vaisala.com/en/products/weather-environmental-se...