【Introduction】：Marine portable medical oxygen cylinders with oxygen, pressure 12KPA, with breathing masks, instructions in both English and Chinese.
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Marine portable medical oxygen, and there are oxygen, pressure 12kpa, with breathing masks, instructions in both English and Chinese.
船用便携式医用吸氧器，内有氧气，压力12kpa，附有呼吸面罩，中英文用法说明。
Close inspection shows that they are wearing masks with tiny perforations around the eye and nose area for seeing and breathing.
据近距离观察，原来他们戴了面具，眼部和鼻子附近有许多方便观看和呼吸的小孔。
I've seen people do breath control with gas masks whose rubber edges conform to the face and seal well, regulating the bottom's access to air through the breathing hose.
我见过一些人戴防毒面具，密封完好，施虐方通过控制面具下方的呼吸管来进行游戏。
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