Exhaust fans help to force out stale air and pull fresh, clean air through your facility for a more comfortable working environment. Belt-driven exhaust fans have durable galvanized steel blades to handle large volumes of air at low static pressures, and are available in vertical roof and horizontal mount wall configurations. They feature variable pitches and adjustable pulleys to optimize performance. Direct-drive models are available in a wide range of sizes and airflows. These medium-performance and high-performance exhaust vent fans can be found with polypropylene propellers and fiberglass frame construction for corrosion resistance. Grainger has ventilation fans available in a variety of sizes and motor horsepower configurations designed for your specific application.