A good exhaust fan will bring you a more comfortable life. It adopts a high-efficiency copper wire motor and 7-blade fan, with strong power and large air volume, which can provide strong wind power and fast ventilation. Build to Last: It is made of premium cast iron, steel and iron, and aluminum alloy, and its surface has been treated with painting technology, which is very shockproof, impact-resistant, rust-proof, sturdy, and has a long service life. Excellent Ventilation Effect: High power copper wire motor, 2600r/min high speed, and seven fan blades can provide strong power and blow strong wind, helping you to quickly ventilate the kitchen, bathroom, etc., and improve efficiency. Thoughtful Design: It adopts an automatic backdraft damper design, which can open and close the air door. Low Noise: It uses a low-noise motor (about 60-70dB), which does not produce a lot of noise to disturb others when in use. Ready to Use: This product does not require assembly and can be used directly upon receipt, which is very time-saving and convenient. Details Pre-drilled Holes: They allow you to easily secure the product to a wall or window. Protective Mesh: It not only prevents accidental entry of hands into the machine but also prevents debris from being sucked into the machine and causing damage. Rounded Corners and Edges: The corners are rounded and smooth to reduce abrasions from collisions and improve safety. Application It is ideal for workshops, basements, garages, warehouses, apartments, kitchens, bathrooms, living rooms, offices, commercial settings, and other places that require constant ventilation. Specifications Color: Black Style: Modern Material: Cast Iron, Steel and Iron, Aluminum Alloy Process: Painting Mount Type: Wall Mounted or Window Mounted Shape: Rectangular, Round Power Source: Wired Assembly Required: No Motor Type: Copper Wire Motor Voltage: AC 220V Frequency: 50Hz Power: 80W Motor Speed: 2600r/min Number of Fan Blades: 7 Noise: About 60-70dB Screw Hole Spacing: 21cm/8.27in Outlet Diameter: 19.5cm/7.68in Product Size: 25*25*15cm/9.84*9.84*5.91in Package Size: 25.5*25.5*16cm/10*10*6.3in Gross Weight: 2kg/4.41 lbs Net Weight: 1.9kg/4.19 lbs Package Included 1* Exhaust Fan 1* English Manual Notes 1.Please carefully check if the size is suitable before placing an order. 2.Please note that this product is not recommended for installation on the ceiling as it may affect the product's service life. 3.Please note that when installing the smoke pipe, the backdraft damper needs to be removed. 4.Please read the operating manual completely before use. And pay particular attention to the safety instructions included.