OSHA compliant circulation fans meet all OSHA safety regulation while delivering maximum airflow these ergonomic, versatile fans all have mounting capability, which makes them the ideal cooling solution for any commercial, industrial, or agricultural facility. These high velocity fans are an effective way to quickly turn down the heat. Twister oscillating fans rotate 90 deg, cooling up to 4000 sq-ft. Twister's oscillating motor utilizes the highest quality metal gear design and construction, providing unparalleled strength and reliability in a fan market saturated with less dependable plastic gears.