KFFKFF 20-Inch Wall-Mounted Shutter Exhaust Fan with Adjustable Speed, Temperature Control, 4800 CFM Airflow, EC Motor, Timer Function, Ideal for Sheds, Garages, and Greenhouses, Black

Efficient Air Circulation: This louvered exhaust fan provides an airflow of 1500 CFM, effectively removing stale air, dust particles, heat, and odors to maintain a fresh indoor environment. It is also suitable for use as a high-capacity ventilation fan in sheds and workshops. Advanced Control System: This fan is equipped with a smart controller that responds to temperature and humidity changes, featuring up to 10 adjustable speed levels. It includes various modes, a timer, and an alarm, providing versatile operation for different needs. High-Performance EC Motor: Operating at 1500 RPM with a 50W power output, this motor delivers airflow speeds of up to 8.8 m/s. Designed for smooth operation and minimal noise, it ensures efficient and stable performance, creating a quiet and comfortable environment. Perfect for use as an attic fan to maintain ventilation throughout the year. Durable Construction: Crafted entirely from steel, this all-metal design ensures exceptional strength and resistance to deformation. It withstands moisture and rain, offering greater durability compared to plastic alternatives and is built to endure challenging weather conditions. Weather Protection: The shutters automatically open when the unit is powered for ventilation and odor removal, and close when turned off to shield against rain and debris, ensuring dependable coverage for an attic ventilation system.