Product material: aluminum alloy. Product weight: about 3.2kg. anti-dry and anti-smoke, long service life. DC noise reduction motor, smooth operation, silent work does not disturb your life. 45-55dB bass. Suitable for integrated ceiling installation, gypsum board, honeycomb board, wood panel, etc. Multiple air exchange ports, accelerate air circulation in all directions, quickly bring fresh air. Perfect bathroom fan to maintain a quiet environment while effectively removing moisture. The ventilation fan can be installed quickly, easy to clean, and is suitable for kitchens, toilets, and as a window fan.