What should be done to improve ventilation if oxygen levels are low?

Improving ventilation in an area with low oxygen levels is crucial for ensuring the safety and health of personnel. Installing additional fans is an effective method because it actively increases air circulation, thus promoting the exchange of stale air with fresh air. By improving airflow, additional fans can help to raise oxygen levels, dilute any harmful gases, and enhance overall air quality.

In scenarios where ventilation is inadequate, measures like sealing off the area would further restrict airflow and exacerbate the issue, while simply adding more personnel would increase oxygen demand without addressing the low oxygen level itself. Utilizing exhaust systems, although beneficial for removing contaminants, may not sufficiently address the need for fresh air intake unless they are part of a balanced ventilation strategy.