Drive Smart Dose mini auto adjusting O2 conserver

• Delivers a uniform oxygen pulse at increments: 1, 2, 3, 4, 5 plus CF present @ 2 LPM • Continuously 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 • Allows delivered dose to increase up to 2 settings during patient exertion up to a maximum pulse dose setting of 7 • Can use 2 AA Alkaline or 2 AA rechargeable batteries for a duration of about 1 year for most patients • Operating pressure range: 500 3000 PSI • Weighs just 15.5 ounces with batteries • Auto shut-off feature conserves battery life • Fits easily in virtually any carry bag