?:definition
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Pulmonary resuscitators designed to provide respiratory support to a patient using the air exhaled by the rescuer. These resuscitators consist of a mouthpiece, a nonrebreathing valve and/or filter to prevent rescuer\'s contact with fluids or gases from the patient,; and a device to deliver the air (e.g., mask, shield) to the patient airway. Exhaled- air pulmonary resuscitators can be used either to provide gases through the mouth or nose; they are used as an alternative to mouth-to-mouth resuscitation to reduce the risk or cross-contamination by physically separating the rescuer from the patient.
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