**FSS Contract 36F79723D0004** Delivers a uniform oxygen pulse at increments: 1, 2, 3, 4, 5 plus CF present @ 2 LPM Monitors breathing patterns and adjusts oxygen dose to match activity level Achieves maximum conservation efficiency by automatically adjusting the dose down when less oxygen is needed Delivers a quiet, gentle dose of oxygen using an efficient and compact design **FSS Contract V797D-30191**