Oxygen Flow : 1-7L Adjustable Noise : <45dB(A) Output Pressure : 30kpa-60kpa Oxygen Concentration : 30%-90% Rated Voltage : AC-220V Rated Frequency : 50Hz Rated Power : 120 Watt Product Size : 315x213x309 mm Product Weight : 6.5 Kg Gross Weight : 8 Kg Color Box Size : 370x265x380 mm...