Unlike other indoor pollutants, including formaldehyde and tobacco smoke, you can’t detect CO2 with your senses alone. Carbon dioxide does not have a color or smell. The only way you can know the level of carbon dioxide is through a carbon dioxide monitor
Why do you need Carbon Dioxide Sensors
Measure the quality of your air through the use of a CO2 sensor. Having this information gives mangers the ability to appropriately adjust HVAC systems to ensure healthy air within their buildings.
Within confined spaces, such as that of a beer cellar, CO2 emission can exceed 40 000 parts per million which could cause harmful effects due to the deprivation of oxygen.