【High Quality】The exhaust fan is made of high-quality metal material, is not easy to be deformed, has excellent workmanship, durable frame and long service life. 【Super Silent】The ventilation fan has high ventilation efficiency and very low noise during operation. 【High Efficiency】It is durable and has a built-in copper motor with thermal protection for continuous operation. Effective and extremely quiet ventilation for quick removal of humidity and odors.