| 摘要 |
A respiration mask according to the invention solves the problem of simple and safe positioning of the mask (3) on a valve (2) of an O2 gas can (1) and its easy one-hand manipulation. A key (5) is intended for its activation, which is installed inside of a cavity (11) and reaches, with its extension (10), beyond the plug (9) of the valve (2) so that it lies with a hole (21) above it. By pressing a finger on the key (5), the latter presses the plug (9) via the extension (10) and opens the valve (2) of the can (1), in which case the O2 gas flows from the can (1) into an empty space (18a) where it can be captured by mouth or nose. The mask (3) is protected against removal by means of a catch (16) located on a rim (12). |
