smoke respirator ; smoke mask
防烟面罩
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烟雾很大时，可利用防烟面罩或将毛巾浸湿捂住嘴鼻，沿墙弯腰爬行至安全疏散口。
Cover your mouth with an anti-smoke respirator or a wet towel due to the heavy smoke and crawl to a safe place along the wall. Just wave something colorful when you call for help.
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