在火灾现场，由燃烧产生的大量有毒有害的浓烟，对人的生命造成极为严重的威胁。据统计，在历次火灾中死亡的人80%以上都是由于烟熏窒息所致。如果你身处火场，旁旁边又有一次性逃生的面罩，别慌，我们教你戴上它，可让你免于烟熏窒息。1.打开盒盖，取出一次性逃生面罩，在滤瓶 At the scene of the fire, a large amount of poisonous and harmful smoke produced by the burning poses a very serious threat to human life. According to statistics, more than 80% of people who died in previous fires are caused by smothering smokes. If you are in the fire, next to a one-time escape mask, do not panic, we teach you to wear it, allows you to avoid smoker choking. 1. Open the lid, remove the disposable mask, in the filter bottle