Bidirectional duct fans are a must-have for any space. VEVOR's duct fans are designed for versatile use. They handle heat, humidity, and smoke effectively. With airflow up to 750 CFM, they cover large areas. The AC motor ensures quiet operation at 38 dB. Save 30% on energy costs with these fans. Adjust speeds easily with manual knobs. Installation is quick with included accessories. Choose VEVOR for reliable ventilation solutions. Perfect for homes, offices, and commercial setups. Experience the difference with VEVOR's advanced technology. Ensure fresh air always with our duct fans. Explore our range today for a better tomorrow.