What is a significant danger of carbon dioxide (CO2) in enclosed environments?

In enclosed environments, a significant danger of carbon dioxide (CO2) is that it reduces the amount of oxygen available in the area. As CO2 levels rise, the concentration of oxygen diminishes, which can lead to hypoxia—a condition where the body does not receive enough oxygen to function properly. This can result in serious health effects such as dizziness, unconsciousness, or even death if the oxygen levels fall too low.

Monitoring and managing CO2 levels is crucial in confined spaces to ensure that adequate oxygen remains available for human breathing. In contrast, while CO2 does have other implications, such as its potential toxicity at high concentrations, the primary concern in enclosed environments is its effect on oxygen levels, making it critical for safety procedures to include vigilant monitoring of gas concentrations. This ensures the safety and well-being of personnel working in such high-risk conditions.