Centrifugal fan This fan is industrial use fan. Itis special for blowing dust,crumbs,granular fiber. It can be used with wide belt sanding machine togehter. It can also be used as common air blower. ModelRotationPowerFlowPressure3.15-6.3A29002.2-5.51369-63742594-116314500.55-7.5684-125051369-2919602.23411-8279711-5043.15-12.5C630-28002.2-552954845001086-2050