The mask lightweight respiratory protection has a high performance levels of fluid-tightness and comfort

摘要

The mask comprises a respirator gas supply (1), a rigid shell-shaped dish (2) keeping the general shape of the mask and comprising a fastening system for the mask onto the wearer's head. A sealing lip (3) surrounds the wearer's nose and mouth. A cavity (C1) is located near the sealing lip and a pasty substance (P1) placed inside the cavity has the viscosity and tension properties sufficiently high for it not to flow when placed in the cavity.