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A diver in a pool wearing an AGA full face mask A diver wearing an Ocean Reef full face mask Head protection helmet for use with Ocean Reef full face diving mask. A full-face diving mask is a type of diving mask that seals the whole of the diver's face from the water and contains a mouthpiece, demand valve or constant flow gas supply that provides the diver with breathing gas. [1]
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 ...
A diving mask (also half mask, dive mask or scuba mask) is an item of diving equipment that allows underwater divers, including scuba divers, free-divers, and snorkelers, to see clearly underwater. [1] [2] Surface supplied divers usually use a full face mask or diving helmet, but in some systems the half mask may be used. [2]
Elastomeric masks must be individually fit-tested and inspected for full efficacy. [2] They may be somewhat easier to fit than filtering facepiece respirators. Older mask designs were designed only to fit young adult men of average weight and a narrow range of ethnicities; newer ones use updated anthropometry and fit more people.
Diving accessories for skin divers. Diver's masks. Requirements and testing. [53] BN-82/8444-17.01 Polish Industry standard, Gumowy sprzęt pływacki - Maski pływackie (Rubber swimming equipment - Swimming masks). [54] ANSI Z87.11:1985 American National Standard, Underwater Safety. Recreational Skin and Scuba Diving. Lenses for Masks. [55]
The origin of the word "Snuba" may be a portmanteau of "snorkel" and "scuba", as it bridges the gap between the two. [2] Alternatively, some have identified the term as an acronym for "Surface Nexus Underwater Breathing Apparatus", [3] though this may have been ascribed retroactively to fit the portmanteau.
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