Huge discounted clearance pricing!! Reliability and efficiency are the main goal. Its more powerful motor combined with the aerodynamically designed shape makes Vortex Powerfan the performance leader in its category. Made in Canada by Atmosphere, these high-performance inline blowers feature superior steel construction with a hammertone powder coat finish. Speed controllable and balanced motors with permanently lubricated ball bearings ensure vibration-free operation. Never seen in the ventilation industry.