Why is ventilation important when working in confined spaces?

Ventilation is crucial when working in confined spaces primarily because it ensures a supply of fresh air. Confined spaces often have limited access to breathable air, which can lead to the accumulation of hazardous gases, vapors, or a lack of oxygen. Proper ventilation helps to dilute or remove these contaminants, reducing the risk of inhalation exposure and maintaining an acceptable atmosphere for workers.

In many cases, the air quality in confined spaces can degrade quickly, making adequate ventilation a key safety measure. Fresh air supply helps to not only prevent asphyxiation but also supports overall health and cognitive function, allowing workers to perform their tasks safely and efficiently.