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An oxygen mask is a mask that provides a method to transfer breathing oxygen gas from a storage tank to the lungs. Oxygen masks may cover only the nose and mouth (oral nasal mask) or the entire face (full-face mask). They may be made of plastic, silicone, or rubber . In certain circumstances, oxygen may be delivered via a nasal cannula instead ...
BIBS mask for oxygen provision in a hyperbaric chamber. Sealing to the front of the lower jaw. An orinasal mask, oro-nasal mask or oral-nasal mask [1] is a breathing mask that covers the mouth and the nose only. It may be a complete independent item, as an oxygen mask, or on some anaesthetic apparatuses, or it may be fitted as a component ...
A typical industrial-grade gas mask for hazardous chemicals and dust A World War I British P Helmet c. 1915 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) Indian muleteers and mule wearing gas masks, France, February 21, 1940 A Polish ...
Respirator. White, disposable Standard N95 filtering facepiece respirator. A half-face elastomeric air-purifying respirator. This kind of respirator is reusable, with the filters being replaced periodically. A respirator is a device designed to protect the wearer from inhaling hazardous atmospheres including fumes, vapours, gases and ...
masks. Commedia dell'arte masks are a type of mask worn by performers of commedia dell'arte theatre. Masks are an integral part of the performance, and each character wears a particular mask design. Masks were originally all made of leather, but are now more commonly made of neoprene. They are an extension of the actors and their costumes, hair ...
Diving mask. 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]
Specifically, to count as a legitimate view, a user must intentionally initiate the playback of the video and play at least 30 seconds of the video (or the entire video for shorter videos). Additionally, while replays count as views, there is a limit of 4 or 5 views per IP address during a 24-hour period, after which point, no further views ...
Facial prosthetic. A facial prosthetic or facial prosthesis is an artificial device used to change or adapt the outward appearance of a person's face or head. When used in the theater, film, or television industry, facial prosthetic makeup alters a person's normal face into something extraordinary. Facial prosthetics can be made from a wide ...