Ever wondered how you're able to breathe underwater so effortlessly? Your regulator is doing a lot more work than you might think. The first stage takes the high-pressure air from your tank and reduces it to an intermediate pressure. Then, when you inhale through the second stage, a small membrane moves, opening a valve and delivering air exactly when you need it. No buttons. No electronics. Just smart engineering that gives divers access to the underwater world with every breath. Understanding

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