Pressure suit
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A pressure suit is a pressurized suit worn by high-altitude pilots who may fly so high that even breathing pure oxygen at surrounding pressure would not provide enough oxygen for them to function: see hypoxia. The first one was invented by the Russian Evgeniy Chertanovskiy. One type of pressure suit is a spacesuit, which is designed to operate in complete vacuum. Pressure suits are also used to provide mechanical loads simulating gravity for long trips in micro-gravity, such as aboard a space station. The Penguin prophylactic body-loading suit has been in use since 1978 by Soviet and now Russian cosmonauts.[1]
Some have a helmet like a spacesuit's.
Some have a pilot's oxygen mask and open-fronted helmet; the mask is clipped to the helmet.
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 Gordon Cooper in a helmet and pressure suit |
 Joe Walker in an early Air Force partial pressure suit |
 British naval air pilot's pressure suit: its mask has a full rubber hood so it can be used as a hazmat suit. |
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