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Aqua-Lung

From Openwaterpedia

noun - The aqualung, invented by Jacques-Yves Cousteau in 1943, enables people bring air with them when they go under water, without needing a hose to the surface. The modern name for the aqualung is SCUBA (or Self-Contained Underwater Breathing Apparatus). The aqualung works using a regulator or demand valve.

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