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

The safe range for oxygen levels in a confined space is recognized as being between 19.5% and 23.5%. This range is crucial for ensuring that individuals working in confined spaces can operate safely without the risk of asphyxiation or other hazards associated with oxygen deficiency or excess.

An oxygen level below 19.5% can lead to hypoxia, which is a condition that arises from insufficient oxygen reaching the body's tissues. Levels above 23.5% can increase the risk of fire or explosion, as higher concentrations of oxygen can promote combustion. Thus, maintaining oxygen levels within this specified range is essential for safe operations in confined spaces, ensuring that workers are protected from both health hazards and combustion risks.

Understanding these parameters is vital for anyone involved in supervising or working in confined spaces, and it highlights the importance of regular monitoring and assessment of air quality in such environments.