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2. Snorkel (swimming) - Wikipedia

   en.wikipedia.org/wiki/Snorkel_(swimming)

   A snorkel is used to allow the user to breathe atmospheric air when their face is immersed in water while swimming or floating at the surface. [1] To work effectively, the snorkel must allow the user to inhale and exhale comfortably over an extended period, and provide a sufficient volume of air with appropriate oxygen and carbon dioxide content to maintain a sufficient and comfortable ...

3. Snorkeling - Wikipedia

   en.wikipedia.org/wiki/Snorkeling

   The snorkel may be an independent item or integrated with the mask. The use of this equipment allows the snorkeler to observe the underwater environment for extended periods with relatively little effort, and to breathe while face-down at the surface. Snorkeling is a popular recreational activity, particularly at tropical resort locations.

4. Scuba set - Wikipedia

   en.wikipedia.org/wiki/Scuba_set

   The word SCUBA was coined in 1952 by Major Christian Lambertsen who served in the U.S. Army Medical Corps from 1944 to 1946 as a physician. [1] Lambertsen first called the closed-circuit rebreather apparatus he had invented "Laru", an (acronym for Lambertsen Amphibious Respiratory Unit) but, in 1952, rejected the term "Laru" for "SCUBA" ("Self-Contained Underwater Breathing Apparatus"). [2]

5. This best-selling snorkel stops water from leaking in when ...

   www.aol.com/best-selling-snorkel-stops-water...

   With this high-tech snorkel, you can dive down without holding a piece of plastic in your mouth. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ...

6. Diving equipment - Wikipedia

   en.wikipedia.org/wiki/Diving_equipment

   Diving safety equipment in the broader sense would include all equipment that could make a dive safer, by reducing a hazard, reducing the probability of an adverse event, or mitigating its effects. This would include basic equipment such as primary breathing apparatus, exposure protection, buoyancy management equipment and mobility equipment.

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