gas mask - определение. Что такое gas mask
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Что (кто) такое gas mask - определение

MASK PROTECTING FROM TOXIC MOLECULES AND PARTICLES
Gasmask; Gas masks; Gas-mask; Thermal Breather; Gas Masks; Military gas mask; Conflict gas mask; WWII gas mask; WWI gas mask; World War I gas mask
  • An asbestos-containing Russian GP-5 filter and a safe modern one in comparison.
  • A World War I British P Helmet c. 1915
  • A British couple wearing gas masks in their home in 1941
  • alt=
  • Iranian soldier wearing a US M17 protective mask on the frontline of the [[Iran–Iraq War]]
  • A Polish MUA gas mask, used in the 1970s and 1980s
  • Zelinsky–Kummant ''protivogaz'', designed in 1915, was one of the first modern-type full-head protection gas masks with a detachable filter and eyelet glasses, shown here worn by U.S. Army soldier ([[USAWC]] photo)
  • A 1939 Second World War-era baby's gas mask in [[Monmouth Regimental Museum]]. This design covered the whole of the baby except for its legs.
  • Indian muleteers and mule wearing gas masks, France, February 21, 1940
  • Pioneers]] in gas masks. [[USSR]], 1937

gas mask         
¦ noun a protective mask used to cover the face as a defence against poison gas.
Gas mask         
A gas mask is a mask used to protect the wearer from inhaling airborne pollutants and toxic gases. The mask forms a sealed cover over the nose and mouth, but may also cover the eyes and other vulnerable soft tissues of the face.
gas mask         
(gas masks)
A gas mask is a device that you wear over your face in order to protect yourself from poisonous gases.
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Википедия

Gas mask

A gas mask is a mask used to protect the wearer from inhaling airborne pollutants and toxic gases. The mask forms a sealed cover over the nose and mouth, but may also cover the eyes and other vulnerable soft tissues of the face. Most gas masks are also respirators, though the word gas mask is often used to refer to military equipment (such as a field protective mask), the scope used in this article. The gas mask only protects the user from digesting, inhaling, and contact through the eyes (many agents affect through eye contact). Most combined gas mask filters will last around 8 hours in a biological or chemical situation. Filters against specific chemical agents can last up to 20 hours.

Airborne toxic materials may be gaseous (for example, chlorine or mustard gas), or particulates (such as biological agents). Many filters provide protection from both types.

The first gas masks mostly used circular lenses made of glass, mica or cellulose acetate to allow vision. Glass and mica were quite brittle and needed frequent replacement. The later Triplex lens style (a cellulose acetate lens sandwiched between glass ones) became more popular, and alongside plain cellulose acetate they became the standard into the 1930s. Panoramic lenses were not popular until the 1930s, but there are some examples of those being used even during the war (Austro-Hungarian 15M). Later, stronger polycarbonate came into use.

Some masks have one or two compact air filter containers screwed onto inlets, while others have a large air filtration container connected to the gas mask via a hose that is sometimes confused with an air-supplied respirator in which an alternate supply of fresh air (oxygen tanks) is delivered.

Примеры употребления для gas mask
1. Holliman said the specialist firearms officer had a gas mask.
2. Report÷ Will a gas mask protect me against biological warfare?
3. Garret Morgan, invented the automatic traffic lighting system and the gas mask.
4. Another officer had to put on a gas mask, she said.
5. The men stepped past discarded gas–mask filters to the entrance of a ghostly kindergarten.