Many railway stations, shopping malls and other places are with dense flow of people and poor air quality, so they will install air duct system. During the installation of air conditioning fresh air s...

In the last century, in the frozen food industry, to meet the special requirements of large cooling capacity and low wind speed in the refrigeration area, HVAC engineers from various countries tried to make the air supply outlet with ordinary cotton fiber fabric, which is in the shape of a cloth bag.

Cloth air duct is often used in gymnasiums, breeding factories, warehouses, workshops, exhibition halls, and other occasions. It integrates noise reduction, static pressure, ventilation, energy-saving, and other functions. In its development, cloth air duct has replaced the traditional air duct in many places year by year.