| 摘要 |
The device has a supply opening (5) at a protective mask (3). A flexible part (7) having a plug (8) is connected with the protective mask for locking the supply opening (5) which has an importable supply pipe (6). A connector (10, 11) is provided at the supply pipe and which connects with the plug. Near the supply pipe a check valve (15) is present. The supply pipe is provided as the connection to a drinking container or a source of compressed gas, such as a source of oxygen. The supply pipe is provided with a plug-in connection (13, 14). |
