CHAD® Evolution Electronic Oxygen Conserver

• Delivers a uniform oxygen pulse at increments: 1, 2, 3, 4, 5, 6, 7 Plus CF preset @ 2 LPM • Minimum 2-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 • Operating pressure range: 500-3000 PSI • Weighs only 14.9 ounces with batteries • Single push button selects the equivalent LPM dosage settings • Auto shut-off feature conserves battery life • Fits easily in virtually any carry bag