1.design&produce mini air pump 2.voltage:DC3~24VAC6--240V(50Hz~60Hz) 3.Flow: ... /m,Pressure:28Kpa 4.Noise:less than32dB M500air pump/mini air pump/massage machine pump/foot massage massage pump/aquariun pump ... machine,foot massage machine,vagetable washing machine,Washing machine,Air humidifier, automotive economizer,high quality,long life,small dimension,high pressure, ...