Carbon dioxide used as a key indicator of indoor pollution
Carbon dioxide is a colorless, tasteless gas with little toxicity in the gas itself, but in large quantities.
Increased breathing speed can lead to breathing disorders, headaches, tinnitus, and elevated blood pressure caused by inhalation of many harmful gases.
Carbon dioxide in the room is usually generated when a person comes out of the breathing process, or when heating or cooking.
It is influenced by indoor volume, indoor number of people, heating status, and ventilation, so it is used as a major indicator of indoor pollution.
