Product parameter Product name：6 inch louver fan A-A：234*234mm B：37mm C：13.8mm D-D：198*198mm E：88mm F：138.8mm Speed: 1050 r/min Function: One-way exhaust Voltage: 220-265V/50Hz Power: 25 w Air volume: 4.1 m3/min Noise: 40 dB (A) Application site: ≥10 ㎡ Weight: 1.20kg Product name：8 inch louver fan A-A：292*292mm B：41mm C：32mm D-D：238*238mm E：93mm F：166mm Speed: 1050 r/min Function: One-way exhaust Voltage: 220-265V/50Hz Power: 30 w Air volume: 8.1 m3/min Noise: 45 dB (A) Application site: 10-20 ㎡ Weight: 1.30kg Product name：10 inch louver fan A-A：339*339mm B：47mm C：39mm D-D：284*284mm E：93mm F：179mm Speed: 1050 r/min Function: One-way exhaust Voltage: 220-265V/50Hz Power: 35 w Air volume: 12 m3/min Noise: 50 dB (A) Application site: 20-40 ㎡ Weight: 1.76kg Product name：12 inch louver fan A-A：394*394mm B：41mm C：40mm D-D：327*327mm E：102mm F：183mm Speed: 1050 r/min Function: One-way exhaust Voltage: 220-265V/50Hz Power: 55 w Air volume: 16 m3/min Noise: 55 dB (A) Application site: 40-55 ㎡ Weight: 1.96kg Note: The products are all measured manually, and there may be an error of 0.5~1cm. Please refer to the actual product for details. Speed up indoor air circulation Simply open a new breathing experience 6 large pitch blades Form a strong suction, quickly remove the peculiar smell of oil fume. Rapid ventilation Fresh and natural Strong wind、high strength、Low resistance、High-quality materials High-quality and high-efficiency bearing motor Large air volume, low noise, smooth and more worry-free. Protective net cover for effective protection It prevents accidental touching of the fan blades or flying in of foreign objects, and the safety is high. More beautiful and generous, detachable and easy to clean, effectively blocking oily smoke When energized, the wind pressure opens the valve When the power is off, the valve closes automatically Prevent mosquitoes and rainwater from entering back High quality Polypropylene material New engineering material, chemical resistance, easy to clean, not afraid of humid environment Applicable scene living room、bedroom、bathroom、kitchen、office Easy to disassemble and wash Removable machine cover / fan blade Panel shell When the casing gets dirty, it can be removed and cleaned Whirlpool fan Excessive oil pollution will affect the exhaust air volume, and the exhaust air effect will be better after dismantling and washing Removable oil tank Drain the oil fume adsorbed on the surface of the machine body into the oil tank to reduce the turbulent flow of oil pollution 1. Remove the exhaust fan panel, fan blades and front cover. 2. Put the window frame body into the reserved installation hole. 3. Fix the exhaust fan. 4. Complete the installation after reinstalling the fan blades, front cover and panel.