Why is ventilation crucial in confined spaces?

Ventilation is crucial in confined spaces primarily because it prevents the accumulation of hazardous gases. Confined spaces can often be environments where toxic fumes, vapors, or gases can build up to dangerous levels, posing significant health risks to anyone who enters. Effective ventilation systems help in the continuous exchange of air, thus diluting or removing hazardous substances from the air and ensuring that the atmosphere remains safe for workers.

While other factors, such as temperature control, communication, and worker breaks, play roles in overall safety and comfort, they do not address the immediate life-threatening risks posed by toxic gas build-up in confined environments. Proper ventilation specifically targets the health risks associated with hazardous gas concentrations, making it an essential safety measure in such settings.