Environmental Specifications Operating Requirement Temperature: 5 to 40 Relative Humidity: less than 80% The atmosphere pressure: 70 to 106 kPa Storage/Shipping Requirements Temperature: -20 to 70 Relative Humidity: less than 93% The atmosphere pressure: 70 to 106 kPa Electrical Specifications Internal battery DC12V 2200mA Input Power Supply Requirements DC 12V 10 VA Charger Power Supply Requirements AC 220V+/-15% 50HZ+/-2% 25 VA Pneumatic Specifications Oxygen Inlet Pressurized Oxygen: 0.4 MPa 10% medical oxygen(Availability through Oxygen Pressure Reducer provided as a accessory) What Is Provided