SP02 Low Purity alarm: When oxygen purity is above 92%, it will give green light; When the purity is between 85% it will give Yellow light; when purity is below 73%, it will give red light; Maintenance alarm: Alarm for maintenance will be heard after 3000 hours Of operation . It Can Be Run ByCar Adapter, Continous Flow, Light Weight. Dc12v, Lithium Battery (one Hour), 220v-240v Or 110v

Flowrate:O-5L/min, Purity: 93%±3% Outlet pressure(Mpa): 0.04-0.07 Sound level (dB): Power: 50/60 ±1Hz; power: 480W Timer: accumulating timing; present timing Alarm: Power failure, High & Low pressure, High temperature Net Weight: 25kg Size (mm): 365 x375x600 PSA (Pressure Swing Absorption) technology Adjustable flowrate Large LCD display for : accumulating timing present timing: from 10min to 40 Digital: Pressure, Temperature Maintenance reminding Nebulizer