Why is proper ventilation essential when working in confined spaces?

Proper ventilation is essential when working in confined spaces primarily to prevent the accumulation of toxic fumes. Many tasks performed in these environments can produce hazardous gases and vapors that may pose serious health risks to workers. Without adequate ventilation, these harmful substances can build up to dangerous levels, leading to potential respiratory problems, dizziness, or even loss of consciousness. By ensuring proper airflow, the concentration of these toxic substances is reduced, thereby improving safety and maintaining a healthier working environment.

While factors such as storage of materials, organization of tools, and comfort also play a role in safety and efficiency, they do not directly address the immediate health hazards posed by inadequate ventilation in confined spaces.