THE NASAL CANNULA IS A DEVICE USED TO DELIVER SUPPLEMENTAL OXYGEN OR AIRFLOW TO A PATIENT OR PERSON IN NEED OF RESPIRATORY HELP AVAILABLE SIZE : ADULT CHILD INFANT THIS DEVICE CONSISTS OF A PVC PLASTIC TUBE WHICH FITS BEHIND THE EARS, AND A SET OF TWO PRONGS WHICH ARE PLACED IN THE NOSTRILS. OXYGEN FLOWS FROM THESE PRONGS THE NASAL CANNULA IS CONNECTED TO AN OXYGEN TANK, A PORTABLE OXYGEN GENERATOR, OR A WALL CONNECTION IN A HOSPITAL VIA A FLOW METER |