.Flow Rate: 0.5-5L .Purity: 93%(土3%) .Outlet Pressure: 6-10Psi(0.04-0.07 Mpa) .Sound Level: ≤40db .Power Consumption: ≤300W .LCD Display: Switch times,operating pressure, present working time, accumulated working time, presetting time from 10mins to 40hours .Alarm: Power Failure alarm, High&low pressure alarm, Low oxygen concentration alarm .Net Weight: 14Kgs .Size: 355*245*595mm