Ambient Environment and Room Weather
magnetic fields and forces
noise and sound
co2
oxygen
Ambient Weather
Literally weather category. Can be used to tell if user is outdoors and compare to recorded weather.
Light
Measured in lumens. Advanced sensors may measure spectrum as well. Tanning. Light Therapy[1] Insufficient light may cause depression and lack of D vitamin? May affect sleep in various ways.
Temperature
Pressure
Humidity
Air Quality
Indoor air quality (IAQ)[2] Threads[3][4]
volatile organic compounds
VOC
NO2
Pm 10, 2.5