The VENTISOL 20-Inch Shutter Exhaust Fan is a versatile, high-performance ventilation solution for residential, commercial, industrial, and agricultural spaces. Its corrosion-resistant aluminum shutters and blades withstand moisture, heat, and rust, ensuring durability. The automatic gravity shutters open and close with fan operation for efficient airflow control. Designed for hassle-free installation, it features a pre-installed 5.4ft power cord—just mount, plug in, and enjoy instant cooling. With a powerful 1309 RPM motor, it delivers 3500 CFM airflow at 7.5 m/s, effectively removing heat, dust, moisture, and odors. Ideal for attics, workshops, factories, barns, and greenhouses, this 120V, 60Hz industrial-grade fan provides superior ventilation with no wiring required. Upgrade your space effortlessly with this heavy-duty, plug-and-play exhaust fan.