The Heavy Duty line of air circulators now features a highly polished cast aluminum airfoil propeller. The self-cleaning propeller offers high efficiency and low noise levels, the company says. According to the manufacturer, the propeller has an ideal air velocity profile for circulating and cooling. The available motors for the air circulators include three-speed, 115-V, oscillating and nonoscillating motors, as well as single-speed, three-phase explosionproof motors.

Airmaster Fan Co., P.O. Box 968, 1300 Falahee Rd., Jackson, MI 49203; 517-764-2300; 517-764-3838 (fax);

eProduct #188