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• 4in Ventilation Fan Noiseless Wall Mounted Exhaust Fan with Large Air Volume for Kitchen Use Feature:1. Adopting diagonal stream supercharging technology, high‑efficiency within rotor motor, vast air volume, excessive performance and coffee energy consumption. 2. The inside double ball bearings are made from very best materials and have a long service life. 3. Using dense natural copper coils, the conductivity coefficient is elevated and the loss is smaller. 4. With greater air stress of the exhaust fan, the air supply can be as much as 10 meters, offering you with a reputable kitchen environment. 5. The noise is low and doesn't influence paintings and life. If it's put in separated from the ceiling, the noise could be lower. Specification:Item Type: Ventilation Fan Material: ABS Weight: Approx. 1348g / forty seven Color: White Power: excessive velocity to35W / low pace to 20W Air Volume: (high) 170m³/h / (low) 133 m³/h Wind Pressure: (high) 125pa / (low) 105pa Speed: (high) 2600r/min / (low) 2100 r/min Noise: (high) 31dB / (low) 26dB How to Use: 1. Installation: A. Remove its center subject in retaining with the instructions, and reveal the set up base; B. Use screws and expansion stoppers to fix the base; C. Connect the left and appropriate ends to the pipe; D. Install the middle box. 2. Power cord connection: This product can be connected to the governor, timer and delayer. Open the flexibility hide on the center subject of the most important unit, and fix the flexibility cord in line with the instructions. Package List:1 x Ventilation Fan4 x Screw4 x Expansion Screw1 x Manual Note:Please verify the wind path when the machine is working earlier than installing!

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