Dictionary
oxygen mask
noun
: a mask worn over your nose and mouth so that you can breathe oxygen from a storage tank
Full Definition of OXYGEN MASK
: a device worn over the nose and mouth through which oxygen is supplied from a storage tank
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First Known Use of OXYGEN MASK
1920
Medical Dictionary
oxygen mask
noun
Medical Definition of OXYGEN MASK
: a device worn over the nose and mouth through which oxygen is supplied from a storage tank
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