Philips Oxygen Concentrator

PRODUCT SPECIFICATIONS Input voltage -120 VAC +/- 10% Input frequency - 60 hz Average power consumption - 350 watts Oxygen concentration* (at 5 lpm) - 93% (+/- 3%) Liter flow - 0.5 to 5 liters per minute Weight - 31 lbs (14 kg) Sound level - 45 dBA typical Dimensions -  23" (584 mm) h, 15" (381 mm) w, 9.5" (241 mm) d Required maintenance Compressor intake filter - change every 2 years OPI (oxygen % indicator) - alarm levels Low oxygen: 82%, very low oxygen: 70% Operating temperature - 55°F to 90°F (12°C to 32°C) Storage -30°F to 160°F (-34°C to 71°C) Outlet pressure - 5.5 PSI Operating altitude - 0 to 7,500' (0 to 2,286 m