... ,fuel cell, air pump. 7 CFM; 4.5KPa; 30dBA; 67g; Three phase DC brushless blower with 12V drive controllerCentrifugal Constrution. Compact Size ... CPAP,fuel cell,etc. Size: D: 70mm; H: 40mmvoltage: 12VDC;Phase: Three;Speed: 30,000 rpm;Air flow @4cm H2O : 120 L ...