High-quality exhaust fans are made of high-quality metal materials. It is difficult to deform it. It is characterized by excellent workmanship, sturdy and durable frame, and long service life. The drilling diameter is 150m. The ultra-quiet fan has high ventilation efficiency and extremely low noise during operation. High efficiency, durable, built-in copper motor with thermal protection for continuous operation. Efficient and extremely quiet ventilation that quickly removes moisture and odors. Applications Ideal for exhaust ventilation in homes, bathrooms, toilets, kitchens, garages, workshops, cellars, attics and more. Easy to use and quick to install on the wall. Easy to use and maintain. Color: White Features: Condition: Material: Copper motor, metal Color: white, black (optional) Power: 40W Voltage: 220V Rated frequency: 50HZ Rated speed: 2800r/min Drilling diameter: 150mm Suction volume: 1100m3/H Working noise: 50~60db Size: about 19*19*13.5 cm/7.48*7.48*5.31 inches Weight: approx. 1488g Package includes: 1 * Exhaust fan