Diving mask

摘要

A diving mask includes a nose cover and a valve seat of a drainage mechanism having a check valve formed in the vicinity of the nose cover. The nose cover and the value seat are formed from an elastic material which is integral with a soft elastic material forming the nose cover. In the vicinity of the valve seat, an annular member formed from a plastic material plastics having a hardness and deformation-resistance both higher than those of the elastic material forming the valve seat is embedded in a bottom of the nose cover so as to extend along the valve seat.