Ventilator Exhaust Fan "Features: * Strong Ventilation: Upgrade fully closed pure copper motor (speed up to 2800r/min) offers fast fume suction, ventilation, keeping the indoor air fresh and comfortable. * Thickened Blades: Seven thickened blades deliver more powerful and uniform air volume, not easy to deform. It runs stably and vibration-free, ensuring large air volume while reducing noise. * High Quality: The metal shell with ceramic paint surface is corrosion resistant, dirt resistant, oil resistant, and provides excellent strength and durability. * Wide Application: Easy to install, suitable for kitchen, toilet, office, meeting room, restaurant, supermarket, cinema, Internet cafe, workshop, waiting hall, etc. Specifications: Voltage: 220V Frequency: 50Hz Power: 40W, 50W Standard Air Volume: 600m3/h, 800m3/h Material: Copper Motor, Metal Shell Color: Black, White Size: 4, 6, Package Contents: 1 * Powerful Mute Exhaust Fan"