Fans can be categorized into seven main types defined by the method of air movement they employ.

Types	Adjustment	Advantages	Benefit
Axial	In an axial fan the air flows in parallel to the shaft	-	- Removing dust, smoke and heat - Air intake
Axial in line	Motor in parallel with the propeller	Simply	Ventilation systems
Axial belt driven	Fan are belt-driven by an external prevents  motor	Motor does not clash with the wind	Vacuuming polluted air
Centrifugal	Air flows in angle of 90°	Use to send wind to high wind loads	-
Centrifugal forward	The blade wheel is mounted in housing and the blades are forward curved	High wind loads	Use to send wind for near
Centrifugal backward	The blade wheel are mounted in housing and the blades are backward curved	High pressure	Use to send wind for far
Ventilator	-	- Removing dust, smoke and heat from factories. - Air intake	-