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The nasal cannula (NC) is a device used to deliver supplemental oxygen or increased airflow to a patient or person in need of respiratory help. This device consists of a lightweight tube which on one end splits into two prongs which are placed in the nostrils curving toward the sinuses behind the nose, and from which a mixture of air and oxygen ...
11th century Moravian nasal helmet, Vienna. One of the few remaining examples of such helmets. The nasal helmet was a type of combat helmet characterised by the possession of a projecting bar covering the nose and thus protecting the centre of the face; it was of Western European origins and was used from the late 9th century to at least c. 1250.
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, and ...
Mezzetino wore servant's clothes with red stripes, but without the common servant's mask. Zanni was the main servant, who wore large loose pants and a shirt that had a hood. Scapino wore outfits with white and green stripes, and his mask had a hooked nose and pointed beard. Pierrot had loose white clothing, with a large matching collar. He ...
Surgical mask. A surgical mask, also known by other names such as a medical face mask or procedure mask, is a personal protective equipment used by healthcare professionals that serves as a mechanical barrier that interferes with direct airflow in and out of respiratory orifices (i.e. nose and mouth ). This helps reduce airborne transmission of ...
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 ...
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