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Personal flotation devices being worn on a navy transport . A personal flotation device (PFD; also referred to as a life jacket, life preserver, life belt, Mae West, life vest, life saver, cork jacket, buoyancy aid or flotation suit) is a flotation device in the form of a vest or suit that is worn by a user to prevent the wearer from drowning in a body of water.
Most buoyancy aids are one of three basic designs: Over the head vest, where the one-piece vest is pulled on over the head. Front zip jacket, where the buoyancy aid is worn like a regular jacket, zipped up at the front. This design limits the front-buoyancy as it requires two separate blocks of foam and a gap for the zip.
A buoyancy compensator (BC), also called a buoyancy control device (BCD), stabilizer, stabilisor, stab jacket, wing or adjustable buoyancy life jacket (ABLJ), depending on design, is a type of diving equipment which is worn by divers to establish neutral buoyancy underwater and positive buoyancy at the surface, when needed.
Life preserver or life-preserver may refer to: a life preserver is a piece of equipment designed to assist a wearer in keeping afloat; also referred to as a lifejacket, life preserver, Mae West, life vest, life saver, cork jacket, buoyancy aid, or flotation suit Lifebuoy, a ring-shaped flotation device; A kind of club
In Canada a Life jacket is officially considered any Buoyancy Aid that intends to keep one's head out of the water when unconscious. This can either be the keyhole/Buoyant vest design with flotation only on the front and a strap around the back or a full vest with head support such a rafting life jacket or small vessel life jacket.
Lifebuoy with emergency light on a cruise ship A lifebuoy floating on water. A lifebuoy or life ring, among many other names (see § Other names), is a life-saving buoy designed to be thrown to a person in water to provide buoyancy and prevent drowning. [1]
While approaching the victim, the lifeguard allows the rescue buoy to trail behind. Once the lifeguard makes contact with the victim, they hand over the rescue buoy to the victim and bring them ashore. The buoyancy of the rescue buoy, along with the reassuring talk, aims to comfort and calm the victim.
Buoyancy compensator, also known as Buoyancy Control Device, BCD or BC - is usually a back mounted or sleeveless jacket style device which includes an inflatable bladder used to adjust the buoyancy of the diver under water, and provide positive buoyancy at the surface. The buoyancy compensator is usually an integral part of the harness system ...