What should be done in the event of impending natural disaster or mechanical failure?

In the event of an impending natural disaster or mechanical failure, the appropriate response is to go to a depth of 60 feet and breathe 100% oxygen. This response is crucial for several reasons.

At a depth of 60 feet, divers can benefit from the increased partial pressure of oxygen, which is essential for maintaining adequate oxygen levels in the body. Breathing 100% oxygen at this depth can help prevent potential hypoxia and assists in reducing the risks associated with ascending to the surface during adverse conditions.

Additionally, this strategy is part of a controlled emergency response that allows for a safe assessment of the situation and can facilitate potential rescue or recovery actions without exposing the diver to the risks of rapid ascent, which might lead to decompression sickness. By taking this approach, divers can stabilize their condition and prepare for safe extraction or alternative measures.

In contrast, other options such as aborting treatment and surfacing immediately, continuing treatment as planned, or decompressing rapidly to the surface are not advisable, as they could exacerbate the situation or put the diver at risk due to rapid changes in pressure or insufficient oxygen supply.