How does increased oxygen exposure affect scuba equipment?

Increased oxygen exposure can significantly impact scuba equipment, especially when dealing with enriched air (nitrox) mixtures that have higher percentages of oxygen than standard air. The correct answer highlights the potential hazards associated with high oxygen environments, which can lead to the risk of ignition and material degradation.

Oxygen in high concentrations can cause certain materials, particularly those that are flammable or reactive, to ignite more easily. This applies to various components typically found in scuba equipment, such as O-rings, silicone lubricants, and certain metals, which may be more susceptible to combustion in the presence of elevated oxygen levels. Over time, exposure to higher oxygen concentrations can also lead to the breakdown of these materials, affecting the integrity and reliability of the equipment.

Scuba equipment is generally designed to operate with specific gas mixtures, and when those specifications are exceeded—like using oxygen-rich blends without proper precautions—the risks associated with high pressures and oxygen levels come into play. Thus, it is crucial for divers to be aware of these risks and to adhere to stringent protocols for oxygen cleaning and equipment monitoring when using enriched air to ensure safety during dives.