20 Inch Shutter Exhaust Fan, Wall Mounted Attic Vent Fan With 3000 CFM Airflow, AC Motor, Heavy-duty Steel Construction, Low Noise For Shed, Garage, Greenhouse Ventilation Cooling, Silver

Rapid Venting: This shutter exhaust fan delivers 3000 CFM to quickly expel stale air, floating dirt, heat, and bad smells—keeping indoor air fresh. Also works as a high-airflow exhaust fan for sheds and workshops

Premium AC Motor: 1480 RPM and 157W provide up to 8.8 m/s airflow while running smoothly with low noise—efficient and stable for a quiet, comfortable experience. Ideal as an attic fan for year-round ventilation

Tough Build: All-metal steel construction offers high rigidity, deformation-resistant, and handles damp and rain, more sturdy than plastic and ready for harsh weather

Rain Guard: Shutters open when powered for ventilation and deodorizing, then close when off to block rain and small things, reliable protection for an attic exhaust fan setup