Industrial Confined Space Fan,12 In.
•2in1 function: high velocity blower & powerful exhaust fan•Create negative air pressure and air circulation in gyms, hallways and other large areas•Delivers dry air for ventilating any narrow space including subterranean manholes and sewers•Lightweight and durable ABS plastic (the same that football helmets use) housing design•Powerful and energy efficient 1/2 HP induction sealed motor•Low 6 Amps draw with 2600 CFM maximum airflow capacity•Variable speed control switch and dual thermal protection•20 ft.