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

The acceptable range for oxygen levels in a confined space is between 19.5% and 23.5%. This standard is established because oxygen levels below 19.5% can lead to asphyxiation and other health risks, while levels above 23.5% pose a fire and explosion hazard due to increased flammability. Maintaining oxygen levels within this specified range ensures that workers have a safe atmosphere to perform their tasks without the risk of oxygen deficiency or an oxygen-enriched environment that could ignite combustible materials.

Understanding the importance of these ranges helps reinforce the safety measures needed when working in confined spaces, ensuring both compliance with OSHA regulations and the overall health and safety of the workers involved.