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mouth-bit respirators, which fit in the mouth with the nose pinched shut (escape only) quarter-mask or orinasal mask, covering the mouth and nose only; half-mask, from below the eyes to below the chin; fullface mask, from above the eyes to below the chin; Some elastomeric masks include one-way valves to let exhaled air out unfiltered.
A half-mask is a mask that covers half the face. It may mean: a mask covering from below the eyes to below the chin a dust mask; a filtering facepiece respirator; an elastomeric respirator; a mask covering the eyes and perhaps the forehead and/or nose, but not the mouth. a half-face diving mask
The integrated snorkel mask may be a half-mask, which encloses the eyes and nose but excludes the mouth, or a full-face snorkel mask, which covers the eyes, nose, and mouth. Early designs of snorkel-mask typically comprised a tube for breathing with an immersion-activated shut-off valve at the top, and the bottom opening into the mask, which ...
A diving mask (also half mask, dive mask or scuba mask) is an item of diving equipment that allows underwater divers, including scuba divers, free-divers, and snorkelers, to see clearly underwater. [ 1 ] [ 2 ] Surface supplied divers usually use a full face mask or diving helmet , but in some systems the half mask may be used. [ 2 ]
Bascinet without accessories. The bascinet – also bassinet, basinet, or bazineto – was a Medieval European open-faced combat helmet.It evolved from a type of iron or steel skullcap, but had a more pointed apex to the skull, and it extended downwards at the rear and sides to afford protection for the neck.
Sovereign: a gold barred-face (tournament) helm placed affronté; Peer's helmet: silver barred-face (tournament) helm placed in profile; Knight's or baronet's helmet: steel helm (earlier jousting helm, later close helm) placed affronté with visor open; Esquire's helmet: steel helm placed in profile with visor closed
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Personnel Armor System for Ground Troops (PASGT, pronounced / ˈ p æ z ɡ ə t / PAZ-gət) is a combat helmet and ballistic vest that was used by the United States military from the early 1980s until the early or mid-2000s, when the helmet and vest were succeeded by the Lightweight Helmet (LWH), Modular Integrated Communications Helmet (MICH), and Interceptor body armor (IBA) respectively.
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