face protection, wall, housing and yttervägg intended to be organised in such a face protection and procedure for reducing interference in the masks of expired air in inandningsluft

摘要

An inner wall (10") of a face shield, such as a welding screen, intended to be placed in front of the face of a wearer, comprises a front side portion (18), side wall portions (19), said front side portion having a light transparent part (9") intended for a protective glass, the side wall portions (19) being bent inwardly in the direction towards the place where the face of the wearer is intended to be positioned, from the region where the mouth of the wearer is intended to be positioned to the region where the eyes of the wearer are intended to be positioned, the front side portion (18) of the inner wall (10") in the above mentioned region being placed in the direction towards the place where the face of the wearer is intended to be positioned, the inwardly bent front side portion and the inwardly bent surroundning side wall portions (19) together forming at least one evacuation channel (12") in cooperation with a cover (20), adapted to be releasably arranged on the inner wall (10"), forming air deflection means (3) for exhalation air (u), and that at least one opening (11") is formed in the inwardly bent part of the front side (18) in the region where the nose and the mouth of the wearer are intended to be positioned. In accordance with the invention, at least said front side portion is adapted to receive said cover (20) in such a way that a light transparent portion (24) thereof is arranged at said light transparent part (9") of the inner wall (10").