用氧時要遠離火源：因氧氣為易燃性氣體，遇火易燃燒產生危險，因此用氧時病

用氧時要遠離火源：因氧氣為易燃性氣體，遇火易燃燒產生危險，因此用氧時病人及其周圍的人皆不可抽煙，以策安全。

結果 (英文) 1:

When the oxygen away from the fire source: oxygen gas because the gas is flammable, combustible fire danger, so everyone with oxygen and its surrounding non smoking patients, to ensure safety.

結果 (英文) 2:

Keep away from the source of fire when using oxygen: because oxygen is flammable gas, fire easy to burn the risk, so oxygen patients and their people around can not smoke, in order to promote safety.

結果 (英文) 3:

Keep away from the fire source when using oxygen: because oxygen is a flammable gas, it is easy to burn in case of fire, which may cause danger. Therefore, patients and people around them shall not smoke when using oxygen, so as to ensure safety.