| http://www.w3.org/ns/prov#value | - Still another object of the present invention is to introduce a sufficient amount of a treating or a respiratory gas, such as oxygen, medicine, etc. (all of which hereinafter are referred to as a ???respiratory gas???) into the nasal cavity of the patient in order to dilute or blow or drive off much of the carbon dioxide, in the process of being exhaled by the patient during an exhalation breath,
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