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Essential equipment includes the snorkel for breathing, and a diving mask or swimming goggles for vision. Swimfins for more efficient propulsion are common. Environmental protection against cold, sunburn, and marine stings and scratches is also regionally popular, and may be in the form of a wetsuit, dry suit, dive skins, or rash vest.
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.
Underwater breathing apparatus can be classified as open circuit, semi-closed circuit, (including gas extenders) or closed circuit (including reclaim systems), based on whether any of the exhaled gas is recycled, and as self-contained or remotely supplied (usually surface-supplied, but also possibly from a lock-out submersible or an underwater habitat), depending on where the source of the ...
The timeline of underwater diving technology is a chronological list of notable events in the history of the development of underwater diving equipment.With the partial exception of breath-hold diving, the development of underwater diving capacity, scope, and popularity, has been closely linked to available technology, and the physiological constraints of the underwater environment.
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]
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 ...
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