Face mask for the protection of the face and eyes, of technicians and operators, during their professional work. (Machine-translation by Google Translate, not legally binding)

摘要

A mask for the protection of the face and eyes of technicians and operators during their professional work, characterized by the fact that it consists of a shield, apron or interchangeable protective visor, made of totally transparent material, or of opaque material with orifices covered with crystals, also interchangeable, supported by an upper clamp in the form of an arc or semicircle to which it is joined by pressure buttons and which is articulated at its two ends with a ring or ring adjustable to the cranial perimeter of the user. Some stops provided in this ring, internally limit the rotation of the clamp, preventing it from lowering excessively, but allow the visor to be raised during breaks. (Machine-translation by Google Translate, not legally binding)