Salter Labs Percent-O2-Lock Air Entrainment System Transparent with Humidity Cup

Salter Labs Percent-O2-Lock Air Entrainment System Transparent with Humidity Cup is a transparent, air-entrainment, elongated mask with soft anatomical under the chin shape. A rotating sleeve air entrainment valve allows to dial in seven different oxygen concentrations, 24, 26, 28, 31, 35, 40 or 50 percent. Aluminum nose clip aids in a positive fit for appropriate oxygen percent delivery. Over the ear or elastic head strap styles.