Mouthpiece for controlled delivery of a breathing gas
A mouthpiece for controlled delivery of a breathing gas including oxygen, preferably an increased ratio of oxygen with respect to ambient air, to the respiratory tracts of a user which includes a valve having two modes; a closed default mode, which substantially impedes any flow of the breathing gas...
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Main Author | |
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Format | Patent |
Language | English |
Published |
29.03.2016
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Subjects | |
Online Access | Get full text |
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