While functioning, the thing emits lethal carbon monoxide gas that takes people's lives discreetly and quickly.

木炭在燃烧时会释放致命的一氧化碳气体，它会悄然且迅速地夺走人们的生命。

The deadly smoke and carbon monoxide gas filled our home.

致命的烟雾和一氧化碳气体充满了我们的家。