This 12 Inch electrically powered Tornado Blower is made for the most demanding uses and has an explosion proof fan cooled motor. It can be used for ventilation of tanks, manholes, process vessels and similar confined spaces. It can also be used for cooling or drying applications. The unit is fully assembled when shipped from the factory. It is ready for use right out of the box. It comes with 25 feet of electrical cable rated for “Extra Hard Use”. The unit has an explosion proof plug that conforms to NEC guidelines.