What is the safe range for oxygen levels in a confined space?

The safe range for oxygen levels in a confined space is crucial for ensuring the health and safety of individuals working or spending time there. The correct range is typically established by occupational safety standards, which indicate that oxygen levels should be maintained between 19.5% and 23.5%.

This range is important because an oxygen concentration below 19.5% can lead to symptoms of hypoxia, which include dizziness, shortness of breath, and impaired cognitive function. Conversely, levels above 23.5% can increase the risk of fire or explosion, as oxygen-rich environments promote combustion.

Understanding this balance is essential for safety protocols in confined spaces, such as tanks or sewers, where atmospheric conditions can be hazardous. Monitoring devices are often used in these environments to ensure that oxygen levels remain within the safe range, thereby protecting the workers from potential harm.