APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Adult masks come in small, medium, and large (sizes 3, 4, and 5). Most adults can be ventilated with a size 3 or 4 mask, but occasionally, a patient with a large jaw requires a size 5 mask.

Detailed explanation-2: -A face mask is a product that covers the wearer’s nose and mouth. Face masks are for use as source control by the general public and health care personnel (HCP) in accordance with CDC recommendations, and are not personal protective equipment.