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Liquid breathing is a form of respiration in which a normally air-breathing organism breathes an oxygen-rich liquid which is capable of CO 2 gas exchange (such as a perfluorocarbon). [ 1 ] The liquid involved requires certain physical properties, such as respiratory gas solubility, density, viscosity, vapor pressure and lipid solubility, which ...
A breathing mask, also called a facepiece, is a component which covers the mouth and nose, sometimes also the eyes and other parts of the face, and may seal against the face. A breathing mask is usually effective, allows mouth and nose breathing, and can usually be sealed adequately without effort by the user.
The CDLSE (Clearance Divers' Life Support Equipment) is made by Divex in Aberdeen, Scotland. [1] It is an electronic closed circuit rebreather designed to be silent and non-magnetic.
The Aqua-Lung is a self-contained open-circuit demand system, which means that breathing gas is provided from high-pressure storage carried by to the diver on demand, when the diver inhales and reduces the pressure in the supply hose, subsequently the flow is shut off when not required.
A device called a bell cursor may be used to guide and control the motion of the bell through the air and the splash zone near the surface, where waves can move the bell significantly. [ 39 ] Once the bell is at the correct depth, the final adjustments to pressure are made and after final checks, the supervisor instructs the divers to lock out ...
Lambertsen designed the LARU while a medical student and demonstrated the LARU to the Office of Strategic Services (OSS) (after already being rejected by the U.S. Navy) in a pool at the Shoreham Hotel in Washington D.C. in 1942 [3] [4] The OSS "Operational Swimmer Group" was formed and Lambertsen's responsibilities included training and developing methods of combining self-contained diving and ...
The company was founded in Lübeck in 1889 as Dräger & Gerling by J. Heinrich Dräger and Carl Adolf Gerling. [2] The first patent was taken out for a reduction device for using carbon dioxide to dispense beer. In 1902 Heinrich Dräger's son Bernhard entered the management; from then on, the company was named Drägerwerk Heinr. und Bernh.
Some types are also referred to as a compressed air breathing apparatus (CABA) or simply breathing apparatus (BA). Unofficial names include air pack, air tank, oxygen cylinder or simply pack, terms used mostly in firefighting. If designed for use under water, it is also known as a scuba set (self-contained underwater breathing apparatus).