centrifugal blower applied to paking machine,fuel cell, air bag ,etc. Voltage: 12VDC / 24VDC; Speed:20, ... Motor phasethree phase Centrifugal blower for CPAP machine with high quality and reasonalble price applied to paking machine,fuel cell, air bag ,medical equipment,etc ... pressure max: 62cm;Hall sensored / sensorless; Centrifugal blower for CPAP machine with high quality and reasonalble price