What is the reason for the low risk of pulmonary oxygen toxicity for divers in this program?

The low risk of pulmonary oxygen toxicity for divers in this program is primarily attributed to the short exposure time to higher partial pressures of oxygen. Oxygen toxicity can occur when divers are exposed to elevated levels of oxygen for extended periods, as this can lead to harmful effects on the lungs and central nervous system. In this training program, the design typically involves brief periods of exposure to increased levels of oxygen, effectively minimizing the potential for toxicity.

Understanding that the duration of exposure is a critical factor helps clarify why short exposure is important. While diving at lower depths and regular training may contribute to overall safety and skill, they are not directly related to managing the specific risk of pulmonary oxygen toxicity. Moreover, the use of oxygen monitors is a precautionary measure that can help ensure safety but does not inherently reduce the risk of toxicity stemming from prolonged exposure. Thus, the central reason lies in the controlled, short durations at higher pressures, limiting the cumulative exposure to oxygen in a way that helps protect divers' health.