Product Description Outstanding Ventilation Airflow: 820 CFM. speed: 1650 rpm. perfect for removing excess heat, moisture, dust and odors from any residential or commercial space. Powerful Motor Totally enclosed motor features thermal protection and permanent lubrication for easy maintenance. Automatic Shutter Gravity aluminum shutters automatically close when power is lost or when not in use Heavy Duty Performance Features galvanized steel frame and aluminum alloy fan. Fully assembled Attic exhaust fan can be easily installed in window openings or wall openings Ventilate anywhere Meet the cooling and ventilation needs of rooms, barns, garages, attics or small enclosed work areas. Specifications Model: VV-ACPQS-10 Power: 45 W Air Volume: 820 CFM Material: Aluminum Alloy, Galvanized Steel Voltage: AC 120 V / 60 Hz Certification: FCC Rotating Speed: 1650 RPM Weight: 7. 2 lbs / 3. 25 kg Color: Silver Package Content 1 x Shutter Exhaust Fan VV-ACPQS-10 14. 57" x 14. 57" x 9. 85" 820 CFM 45W Aluminium Exhaust Fan - Silver 10" Exhaust Fan: Dimensions 12. 8 x 12. 8 inches Airflow 820 CFM Speed 1650 RPM for effective removal of heat humidity odors and dust High Performance: Operates at 120V/60Hz with 45W power consumption; features a premium motor for maximized airflow and minimized noise Durable Construction: Rugged allmetal structure with galvanized steel frame and aluminum alloy fan for weather and dust resistance Easy Installation: Fully assembled for quick setup; includes 4 bolts for mounting with no complex wiring required Versatile Use: Ideal for garages workshops chicken coops sheds attics greenhouses and more for effective ventilation in various environments