Carbon Dioxide Gas Detection

CAS Number: 124-38-9
TWA: 5000ppm
STEL: 15000ppm


Carbon Dioxide (CO2) is an odourless and colourless gas.


Despite the fact that we breathe out Carbon Dioxide and that it is present in the atmosphere (about 400 ppm), its maximum safe level is 5000 ppm (0.5% by volume). There is some degree of risk in crowded, badly ventilated places, and an oxygen deficient atmosphere can accompany this problem.

Where is it found

It is a product of combustion and is used to carbonate beer found in brewing and other fermentation processes. CO2 along with Methane are the primary components in landfill and sewage treatment digester gas.

CO2 is heavier than air and collects at low levels. As a guide, Carbon Dioxide gas sensors should be fitted at knee height.

Carbon Dioxide monitoring products