Types of Preventive Clothing and Their Uses or Applications Part-8

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Boiler Suit:
A boilersuit is a loose fitting garment covering the whole body except for the head, hands and feet. The 1989 issue of the Oxford English Dictionary lists the word boilersuit first on 28 October 1928 in the Sunday Express newspaper. The garment is also known as an overall in some places, but that word is more usually understood as a bib-and-brace overall, which is a type of trousers with attached suspenders. A more tightfitting suit is usually called a jumpsuit.
Figure 56: “Boiler Suit coverall”
Siren Suit:
The siren suit is a one-piece garment for the whole body which is easily put on or taken off, originally designed for use on the way to and in air-raid shelters. The suit solved the problems of warmth and modesty encountered when seeking shelter during nighttime air raids in the United Kingdom during World War II. It was roomy and could be put on over night clothes quickly when an imminent air raid was announced by the sirens. The suit was worn by both children and adults when sheltering in either back garden or public shelters.
Figure 57: “Winston Churchill wearing a siren suit beside British General Bernard Montgomery during the Second World War in the United Kingdom”
Ski Suit:
A ski suit is a suit made to be worn over the rest of the clothes when skiing or snowboarding. A ski suit made for more casual winter wear outdoors may also be called a snowsuit and are often used by children as everyday outerwear in the winter season. Some suits are specifically made for snowboarders but most are used by either skiers or snowboarders regardless of the style.
Figure 58: “Karl Schranz in a one-piece and Vladimir Putin in a two-piece ski suit”
Pressure Suit:
A pressure suit is a protective suit worn by high-altitude pilots who may fly at altitudes where the air pressure is too low for an unprotected person to survive, even breathing pure oxygen at positive pressure. Such suits may be either full-pressure (i.e. a space suit) or partial-pressure (as used by aircrew). Partial-pressure suits work by providing mechanical counter-pressure to assist breathing at altitude.
Figure 59: “A pilot of the Lockheed U-2, nicknamed "Dragon Lady", is a single-engine, ultra-high altitude reconnaissance aircraft operated by the United States Air Force (USAF) and previously flown by the Central Intelligence Agency (CIA).”
Space Suit:
A space suit is a garment worn to keep a human alive in the harsh environment of outer space, vacuum and temperature extremes. Space suits are often worn inside spacecraft as a safety precaution in case of loss of cabin pressure, and are necessary for extra-vehicular activity (EVA), work done outside spacecraft. Space suits have been worn for such work in Earth orbit, on the surface of the Moon, and en route back to Earth from the Moon. Modern space suits augment the basic pressure garment with a complex system of equipment and environmental systems designed to keep the wearer comfortable, and to minimize the effort required to bend the limbs, resisting a soft pressure garment's natural tendency to stiffen against the vacuum. A self-contained oxygen supply and environmental control system is frequently employed to allow complete freedom of movement, independent of the spacecraft.

Some of these requirements also apply to pressure suits worn for other specialized tasks, such as high-altitude reconnaissance flight. Above Armstrong's line (around 19,000 m (62,000 ft)), the atmosphere is so thin that pressurized suits are needed.

The first full-pressure suits for use at extreme altitudes were designed by individual inventors as early as the 1930s. The first space suit worn by a human in space was the Soviet SK-1 suit worn by Yuri Gagarin in 1961.
Figure 60: “Apollo A7L space suit worn by astronaut Buzz Aldrin on Apollo 11”

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