Product DescriptionThe SimplyFlo stationary oxygen concentrator is the latest addition to the Philips Respironics oxygen portfolio. It has two LPM continuous flow oxygen delivery capability and is designed for use overnight and while away from home. Weighing less than nine pounds, SimplyFlo is the lightest continuous flow stationary oxygen concentrator available. It operates on external power only and has no internal battery. An optional travel accessory case allows oxygen patients to easily transport SimplyFlo between locations. FeaturesWeighs only 9 pounds Has two LPM continuous flow capabilityIs easy to transportTwo year warranty Product Specifications Oxygen concentrations 87 to 96% at all settings Outlet Pressure 6.4 PSIG max Continuous flow settings 0.5 LPM, 1 LPM, 1.5 LPM, 2 LPM; /- 15% or 150ml/min whichever is greater minutes running average Sound level =50 dBA typical at 2 LPMPhysical characteristicsSize 11.5 in x 10 in x 6 in 29.2 cm x 25.4 cm x 15.2 cm Weight 9 lbs 4.1 kg User Interface Push buttons, back-lit liquid crystal display LCD Filtration Internal air inlet filter gross particle , main-flow bacteria filterOperating ConditionsOperational Temperature 41 degrees to 104 degrees F 5 degrees to 40 degrees C Relative Humidity 15 to 95%Altitude Up to 10,000 ft 3048 m Storage Conditions Temperature 4 degrees to 140 degrees F 20 degrees to 60 degrees C unit onlyRelative Humidity Up to 95%, non condensingAC PowerIncludes AC power cordOutput 19 VDC, 7.9 A maxInput 100 to 240 VAC, 50/60 Hz, 1.7 A maxAudible AlarmSound Level 50 dB nominal at 39 in 1 m Alarm Type Low oxygen purity, No flow, System technical fault, Loss of power 1 Each / Each