Olive Oxygen Concentrator Model No. OLV-10S Voltage AC220V ± 22V, 50Hz ± 1Hz/110v ± 15V,60Hz ± 1Hz Outlet Pressure 20Kpa-60Kpa Flow Rate 0-10L/min Oxygen Purity 93% ±3% Sound Level Less than 50db Input Power 600VA Net Weight 28Kgs Dimension(MM) 350�?250�?670mm Working System Continuous flow Atomization Quantity 0.15ml/min(Only modes with atomization function) Warranty Two Years Standard Accessories 2*Nasal Cannula 1*Humidifier Bottle 1*Extra Hepa Filter 1*Extra First Filter 1*User Manual 1*Warranty Card Features Accompany You With Health