Airsep Lifestyle Portable Oxygen Concentrator

Specifications of AirSep LifeStyle Portable Oxygen Concentrator:
Oxygen concentration:* 1-5 pulse settings; equivalent to continuous flow of 90% oxygen A 3%
Dimensions: 5.5 in. high x 7.25 in. wide x 16.31 in. deep
(13.9 cm high x 18.4 cm wide x 41.4 cm deep)
Weight: 9.75 lb (4.4 kg)
Power: Life Style unita 13 VDC, 42 watts; Power supplya 100a 250 VAC, 50/60 Hz, 2.0 amps max; Battery packa 12 VDC, nominal
Battery duration: 50 minutes nominal for fully-charged battery; up to 3 1/4 hours with 3 batteries in optional Power Pack
Battery charge time: 2-2 1/2 hours; Power Pack with up to 3 batteries a 4 hours
Warm-up time: 3 minutes
Audible alarms and visual indicators: Start-up a audible and visual (green indicator light); Pulse flow a visual (green pulse light); Battery condition a audible and visual (yellow indicator, warning, and alarm lights); Cannula disconnect a audible and visual (red alarm light); System overdraw a audible and visual (red warning and alarm lights); High and low pressure a audible and visual (red alarm light)
Sound: 50 dBA
Temperature range: Operational temperature: 41A F to 104A F (5A C to 40A C.); (Operating unit outside of this range can affect performance.) Storage temperature: -4A F to 140A F (-20A C to 60A C)
Altitude: Up to 12,000 ft (3,657.6 m.) (Higher altitudes may affect performance.)