Carbon Dioxide gas is an important gas to be the detector for incubators, breweries, indoor air quality, COVID infection, and biological functionality. CO2 monitors are made up of NDIR sensors that last between 5 to over 10 years. Exposure to high levels of carbon dioxide can be dangerous. At regular levels (400-1,000 ppm), carbon dioxide is perfectly safe. When it gets more concentrated, such as over 5,000 ppm, toxicity, and oxygen deprivation can occur.