Why is regular monitoring of oxygen levels important during a dive?

Regular monitoring of oxygen levels during a dive is crucial primarily to prevent potential breathing difficulties. As divers descend and ascend, the exposure to increased pressure can affect how gases are absorbed and utilized by the body. Insufficient oxygen levels can lead to hypoxia, which can cause serious complications such as impaired cognitive function and loss of consciousness. By closely monitoring oxygen levels, divers can ensure that they are receiving an adequate supply of this essential gas, thereby reducing the risk of medical emergencies and improving overall safety during the dive.

Maintaining proper oxygen levels also supports physical performance and reduces fatigue, allowing divers to carry out their tasks effectively and safely. This proactive approach to monitoring helps divers respond swiftly to any variations in their environment that may affect their oxygen supply.