220V 4in Ventilation Fan Noiseless Wall Mounted Exhaust Fan with Large Air Volume for Kitchen Use

Feature: 1. Adopting diagonal flow supercharging technology, high?efficiency inner rotor motor, large air volume, high efficiency and low energy consumption. 2. The internal double ball bearings are made of excellent materials and have a long service life. 3. Using dense pure copper coils, the conductivity coefficient is higher and the loss is smaller. 4. With larger air pressure of the exhaust fan, the air supply can be up to 10 meters, providing you with a good kitchen environment. 5. The noise is low and does not affect work and life. If it is installed separated from the ceiling, the noise will be lower. Specification: Item Type: Ventilation Fan Material: ABS Weight: Approx. 1348g / 47.5oz Color: White Power Supply: 220V / 50Hz Power: high speed to35W / low speed 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 box according to the instructions, and expose the installation base; B. Use screws and expansion stoppers to fix the base; C. Connect the left and right ends to the pipe; D. Install the center box. 2. Power cord connection: This product can be connected to the governor, timer and delayer. Open the power cover on the center box of the main unit, and connect the power cord according to the instructions.. Package List: 1 x Ventilation Fan4 x Screw4 x Expansion Screw1 x Manual Note: Please confirm the wind direction when the machine is running before installing!