The EPA long ago approved spraying of ClO2-generating liquids or gas for odor and germ control on food products, home fabrics, and anywhere that germs need to be killed.

美国环保署在很久之前就认可二氧化氯液体喷雾或二氧化氯气体对气味和微生物的抑制功效，包括在食品里、家中和任何有微生物需要被杀死的地方。

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Most important, smell disorders can be downright dangerous for those who cannot detect the odor of smoke, burning or spoiled food, natural gas or other noxious aromas.

最为重要的是，嗅觉障碍对那些不能够觉察到烟味、烧焦味、食品馊味、天然气或其他有毒气体味道的人来说危险到极点。

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The goal of treatment of flatulence is to reduce gas and odor.

的目标，治疗肠胃气胀是减少气体和气味。

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Mr. Brown and his wife said they had ridden out the tornado in a storm cellar, Iistening to the sound of screeching metal and smelling the odor of gas.

WSJ: After Oklahoma Tornadoes, Rescue Efforts Focus on Survivors

Aside from its unpleasant odor, the toxic gas-a natural byproduct of organic and inorganic wastes-can corrode metal.

FORBES: Germ Warfare