Air Consumption

[scubadada]

You'll get better and more comfortable as time goes on, just focus on improving buoyancy, trim, and your comfort level and have fun.

I only ever calculated SAC rate (and tired brain isn't currently remembering how different SAC and RMV are). But I think my current SAC rates for warm water is about 0.2-0.3 and cold I typically run 0.45-0.5. I'm a small 5'3" though and I rarely get cold in the water.

SAC is reported as pressure/time (psi or bar/min) and is cylinder dependent. RMV is reported as volume/time (cubic feet or liters/min) and is cylinder independent.