| 摘要 |
Lifesaving device, for use in boats, in particular sports boats, consisting substantially of an open helmet (1) with an integrated mouthpiece (7), respiration tubes (2) and a respiration controller (3), which are connected to an oxygen tank (12) that is carried on the person's body or detachably connected to the boat, characterized in that the mouthpiece (7) has a guard (8). |
