Gas Mask

A gas mask is a mask put on over the face 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. Some gas masks are also respirators, though the word gas mask is often used to refer to military equipment (e.g. Field Protective Mask). The user of the gas mask is not protected from gas that the skin can absorb.

Airborne toxic materials may be gaseous (for example the chlorine gas used in World War I) or particulate (such as many biological agents developed for weapons such as bacteria, viruses and toxins). Many gas masks include protection from both types. Gas masks are used in construction to protect against welding fumes, in deconstruction to protect against asbestos or other hazardous particles, and in the chemical industry when handling hazardous materials, as in making repairs to leaking equipment or cleaning after spills; workers are usually issued gas masks as a precaution against leaks.

During riots where tear gas or CS-gas is employed by riot police, gas masks are commonly used by police and rioters alike. Aside from serving their functional purposes, gas masks are also used as emblems in industrial music, by graffiti taggers because the mask protects them from the graffiti canister's toxic fumes, and by Urban Explorers venturing into environments where hazardous materials, such as asbestos, may be present.

The traditional gas mask style with two small circular eye windows originated when the only suitable material for these eye windows was glass or acrylic; as glass is notoriously brittle, glass eye windows had to be kept small and thick. Later, discovery of polycarbonate allowed gas masks with a big full-face window. Some have one or two filters attached to the face piece; others have a large filter connected to the face piece by a hose.

Read more about Gas Mask:  Principles of Construction, Use of A Mask, Reaction and Exchange, History and Development of The Gas Mask, History of Absorbents and Neutralizers

Other articles related to "gas, gas masks, masks, gas mask":

Chemical Weapons In World War I - Countermeasures
... War's combatants was prepared for the introduction of poison gas as a weapon ... Once gas had appeared, development of gas protection began and the process continued for much of the war producing a series of increasingly effective gas masks ... Even at Second Ypres, Germany, still unsure of the weapon's effectiveness, only issued breathing masks to the engineers handling the gas ...
James Bert Garner - Accomplishments
... exposed to the principle he later used in a charcoal gas mask ... Garner's purpose was to fix in his students' memory a mental picture of how ammonia gas was adsorbed by wood charcoal ... The following excerpt relates to Garner's research into the gas mask ...
Cluny Mac Pherson
... John's, Newfoundland – 16 November 1966) was a medical doctor and the inventor of the gas mask ... During the First World War the German army used poison gas for the first time, against Allied troops at Ypres, France in 1915 ... of necessity, Doctor Cluny Macpherson quickly came up with the idea of a gas mask made of fabric and metal ...
Sandman (Wesley Dodds) - Publication History - Silver Age To Modern Age
... #18 which gives an explanation of why Dodds changed costumes from the cloak and gas mask to the yellow-and-purple outfit Dian wore his costume while he was fighting in the war and she was killed in a fray ... Belmont the Sandman's appearance, (wearing a trench coat and World War I gas mask instead of the cape and the custom-made gas mask) and Dodds' pudgier ...
Gas Mask - History of Absorbents and Neutralizers
... charcoal is a common component of gas masks ... effective filtering activated charcoal gas mask in the world invented in 1915 by Russian chemist Nikolay Zelinsky ... In the first gas masks of World War I, it was initially found that wood charcoal was a good absorbent of poison gases ...

Famous quotes containing the words mask and/or gas:

    It appears to me that men are hired to run down men of genius under the mask of translators, but Dante gives too much of Caesar: he is not a republican.
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    Shielded, what sorts of life are stirring yet:
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    The gas and grate, the old cold sour grey bed.
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