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In army parlance, a gaiter covers leg and bootlacing; a legging covers only the leg. In Royal Air Force parlance, gaiter includes leggings. The United States Army during World War I [2] and World War II had leggings, which were gaiters. Above the knee spatterdashes were cotton or canvas, as were many gaiters of varying lengths thereafter.
A surgical mask is a loosely-placed, unsealed barrier, meant to stop droplets, and other liquid-borne particles from the mouth and nose that may contain pathogens. [48] A surgical mask may not block all particles, due to the lack of fit between the surface of the face mask and the face. [48]
Some longer neck gaiters can also be pulled up and cover the lower face as an improvised face veil to help keep out sand/dust, smoke and other airborne irritants from entering the mouth and nose, to prevent cold hives and/or frostbites by wind chills (especially on exposed nosetip), or to protect the facial skin from harmful sunlight during ...
US Ambassador to Indonesia Sung Kim accompanied by local officials at the Presidential Palace wearing face masks amid the COVID-19 pandemic. During the COVID-19 pandemic, face masks or coverings, including N95, FFP2, surgical, and cloth masks, have been employed as public and personal health control measures against the spread of SARS-CoV-2, the virus that causes COVID-19.
An N95 respirator is a disposable filtering facepiece respirator or reusable elastomeric respirator filter that meets the U.S. National Institute for Occupational Safety and Health (NIOSH) N95 standard of air filtration, filtering at least 95% of airborne particles that have a mass median aerodynamic diameter of 0.3 micrometers under 42 CFR 84, effective July 10, 1995.
An open circuit SCBA typically has three main components: a high-pressure gas storage cylinder, (e.g., 2,216 to 5,500 psi (15,280 to 37,920 kPa), about 150 to 374 atmospheres), a pressure regulator, and a respiratory interface, which may be a mouthpiece, half mask or full-face mask, assembled and mounted on a framed carrying harness.
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