Dr. Lecter
Contributor
And labeling regulators as lifesaving (I realize you did not directly do this) is very silly. It's the oldest sales-gimmick in the dive shop book, and what it really does is reveal ignorance of the most basic tenants of dive safety.
Not all of us dive under conditions where returning to the surface is part of the contingency plan if air stops coming into our lungs from the reg in our mouth. True, those of us that do dive under conditions where ascent to the surface isn't an option have to have redundancy in our regulators and gas supply. But while no one regulator should be the sole means of life support, a claim that regs aren't life support equipment is still bull.