What is the danger of asphyxiation set point for oxygen on an atmospheric monitor?

The set point for oxygen as a danger of asphyxiation is typically defined as 19.5 percent. This threshold is significant because normal atmospheric oxygen levels are around 20.9 percent. When the oxygen levels fall below 19.5 percent, it indicates a potentially hazardous condition where individuals may experience symptoms of asphyxiation due to insufficient oxygen.

In environments where there are confined spaces or specific industrial applications, monitoring oxygen levels is crucial for safety. Levels below 19.5 percent can lead to dizziness, increased heart rate, and impaired cognitive functions, making it vital for individuals to be aware of and take action when oxygen levels reach this limit. Therefore, setting the danger point at 19.5 percent helps ensure that necessary precautions are taken to maintain safe working conditions.