RESPIRATOR THAT USES A PREDEFINED NOSE FOAM SHAPE

摘要

A respirator (30) that comprises a mask body (32) and a nose foam (10). The mask body (32) is adapted to fit over the nose and mouth of a person and has an interior surface (34). The nose foam (10) has a front side (26), a rear side (24), and is secured to the interior surface (34) of the mask body (32) at a mask contacting surface (12). The nose foam (10) also has a central portion (14) and first and second side-contacting portions (16), (18) that are symmetrically located on opposing sides of the central portion. The nose foam further has a nose-contacting surface (20) that extends over the central portion (14) and the first and second side-containing portions (16, 18). The nose-contacting surface (20) is skewed at first and second angles alpha to a plane (22) that cuts through the nose foam orthogonally to its lengthwise dimension. A nose foam of this construction can provide a snug fit to a wearer's face in the nose region without having to use a nose clip.