| 摘要 |
PURPOSE: A disposable gas mask is provided to help the wearer safely escape from the fire while supplying oxygen to the wearer, and to improve the convenience of carrying and storage thereof due to its reduced size. CONSTITUTION: The disposable gas mask comprises a mask body(10) consisting of fire retardant sheets(11,12). The mask body is provided with a transparent window(16), ventilation holes(17), a filter(18), and protective pieces(14). The bottom of the mask body is closed by a silicone film(20) having an entrance opening(19). A magnet piece(24) is attached to the retardant sheet(11), and another magnet piece(33) is connected to an injection tube(32) of an oxygen can(30). When the injection tube is inserted into a hole(23) of the magnet piece(24) while tearing a thin film(22) of the magnet piece(24), both the magnet pieces are attached to each other, achieving the connection of the injection tube into the mask body.
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