Twin Oxygen Set Twin prong nasal oxygen set is designed to ensure equal volume of oxygen to both air passages. System of attachment and soft funnel shape connector facilitates easy connection to the oxygen source. -Star lumen tube ensures the supply of Oxygen. -Manufactured from soft, non-toxic green/natural PVC. -E.T.O. Sterile and Pyrogen Free. -Size : Adult, Paediatric & Neonatal