Comment Comment by ducttape12 > They now use emergency tanks that carry 40 minutes of air rather than five.Glad to see the change, but why even carry a tank with 5 minutes of reserve? Might as well just plan on holding your breath in that case. parent ducttape12 7 years ago
Glad to see the change, but why even carry a tank with 5 minutes of reserve? Might as well just plan on holding your breath in that case.