Medical oxygen respirator is small instrument for oxygen supply and mainly used for personal health care, hospital, plateau oxygen supplement and undermine oxygen supply, etc.
医用输氧器是小型的供氧装置，主要用于个人保健、医院、高原补氧和井下供氧等。
Medical oxygen respirator is small instrument for oxygen supply and mainly used for personal health care, hospital, plateau oxygen supplement and undermine oxygen supply, etc.
医用输氧器是小型的供氧装置，主要用于个人保健、医院、高原补氧和井下供氧等。
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