The HFOC» High Flow Oxygen Conserver addresses the need to deliver 100% oxygen during resuscitation and performs the function regardless of resuscitator rate and bag stroke volume. The lightweight, HFOC Flow Oxygen conserver operates from any standard 50 psi gaseous oxygen source. This quality designed device has an integral back pressure relief diaphragm which functions to relieve pressure greater than atmospheric. Adapters are available to attach the HFOC» to the most popular brands of bag valve resuscitators. Comes with 6' O2 supply hose.