What is the adjusted maximum dive time for a diver using EAN32 for a second dive to 23 msw after a prior dive to 33 msw?

In this scenario, where a diver is using EAN32 for a second dive to a depth of 23 msw after a prior dive to 33 msw, the adjusted maximum dive time is calculated based on the potential nitrogen loading from the first dive and the characteristics of the second dive.

EAN32 has a lower partial pressure of nitrogen compared to air, which means it allows for longer bottom times at certain depths. However, after a dive, the diver must consider the residual nitrogen from the previous dive, which affects the maximum allowable time for subsequent dives.

The key factor here involves understanding the no-decompression limits (NDLs) for each dive. For a dive to 33 msw using EAN32, the nitrogen exposure would be greater. After this dive, the time to surface and the nitrogen loading must be factored in for the second dive. When diving again to 23 msw, the use of EAN32 significantly reduces the nitrogen accumulation compared to a regular air dive, allowing the diver to stay longer within safe limits.

The 24 minutes is determined as the result of adjusting the maximum dive time to account for the first dive's nitrogen loading while still maximizing safety during the second dive. This adjustment ensures that the diver remains