Surface Air Consumption

When breathing air under higher pressure, you are actually breathing more molecules of air for the same volume. These extra air molecules are packed into the same breath you would take at the surface, but you are actually breathing x times more of them the deeper you go.

Because of this, it can become tricky to understand how efficient you are with your air reserves, and that’s where the Surface Air Consumption Rate (SAC) comes into play. 

Read More