You are planning a dive to 75fsw with EAN 32 for 35 minutes and taking a 2-hour surface interval. What is the maximum possible no-stop time for a second dive to 67fsw using EAN 36?

The question revolves around understanding dive planning and the use of dive tables or computer algorithms for calculating no-stop times, especially when switching between different gas mixtures like EAN 32 and EAN 36.

When diving with Enriched Air Nitrox (EAN), the percentage of oxygen in the mix allows for longer no-stop times compared to air, assuming depth and exposure times are taken into account. After a dive to 75 fsw with EAN 32 for 35 minutes, a diver must consider factors such as nitrogen loading and residual nitrogen when planning the second dive, especially with a different nitrox blend at a different depth.

The maximum no-stop time for the second dive at 67 fsw using EAN 36 would be evaluated based on the residual nitrogen from the first dive and how the increased oxygen percentage in EAN 36 affects the nitrogen limits.

Using dive tables or a dive computer specifically adapted for nitrox, one can determine how long one can stay at a given depth without needing to perform decompression stops based on previous dive profiles, focus on surface intervals, and make necessary adjustments for the switch in gas mixtures. The second dive's maximum no-stop time would ideally reflect the ability to extend dive time due to the higher oxygen percentage