Drive DeVilbiss CHAD® Evolution™ Motion Auto-Adjusting Oxygen ConserverUOM 1 Per Each Features Delivers a uniform oxygen pulse at increments: 1, 2, 3, 4, 5 and 6 Plus CF preset @ 2 LPM Senses patient activity and turns oxygen flow up or down as needed, within seconds Program a Rest and Active setting equivalent to 1 6 liters per minute Minimum 1 year battery life* utilizing 2 AA batteries Delivers a 5: 1 savings ratio from 14 40 breaths per minute Senses a breath delivers oxygen in the first half of the inspiratory cycle
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