Reswell apap (automatic positive airway pressure) rvc 810a Capability for enhanced compliance reporting of apnea/hypopnea index, elevated leak levels and so on Compact design with built-in humidifier suitable for travelling Higher water/dust protection grade making device more durable Automatic leakage & altitude pressure compensation ensuring therapy pressure Quiet delivery of the required pressure guaranteeing sleep continuity Worldwide main power compatibility 100-240v Ramp function& dual backflow prevention technology Auto start & auto stop & display with backlit Technical specifications Power supply: ac 100-240v, 50/60hz, 350ml, in max scale Pressure range: 4-20cmh2o, 0.5cmh2o increments 2kg