Personal respiratory protection device i.e. face respirator mask, for protecting human against particles contained in breathing air, has links formed such that sum of lengths of contact edges is greater than circumference of central part

摘要

The device has flattened links (14, 16) provided with contact edges (44, 46) that are separated from a flattened center part (12) for sealing a contact on a face of a person. The links are arranged on the center part, so that the unjoined contact edges are converged on respective starting points (40, 42) of the center part. The links are formed such that sum of lengths of the unjoined contact edges is greater than circumference of the central part. Connecting lines are converged on the respective starting points, and designed as a folding line, a seam, a welded joint and a connection.