KFFKFF 18-Inch Wall-Mounted Shutter Exhaust Fan with Adjustable Speed, 2200 CFM Airflow, Durable Steel Construction, Quiet Operation for Ventilation in Sheds, Garages, and Greenhouses, Black

Efficient Air Circulation: This louvered exhaust fan provides a powerful airflow of 2200 CFM, effectively removing stale air, dust particles, heat, and unpleasant odors to maintain a fresh indoor environment. It is also ideal for use in sheds and workshops as a high-capacity ventilation solution. Adjustable Airflow Control: Experience seamless airflow adjustment with the stepless variable-speed feature. The provided controller allows you to fine-tune the fan's output, ranging from a light breeze to a strong flow, catering to various ventilation requirements. High-Performance AC Motor: Operating at 1450 RPM with 117W power, this motor delivers airflow speeds of up to 6.8 m/s. Designed for smooth operation and minimal noise, it ensures efficient and stable performance, creating a quiet and comfortable environment. Perfect for attic ventilation throughout the year. Durable Construction: Crafted entirely from steel, this structure ensures exceptional strength, resists deformation, and withstands exposure to moisture and rain. It offers greater durability compared to plastic alternatives and is designed to endure challenging weather conditions. Rain Protection: The shutters automatically open when the fan is running to allow ventilation and odor removal, and close when the fan is off to shield against rain and debris, ensuring dependable coverage for your attic ventilation system.