Profile: Duct Sox manufactures fabric air dispersion systems. Our system is used to distribute and disperse air in open ceiling architecture. Our systems discharge air through a combination of porous fabrics, engineered orifices and linear vents to meet a range of HVAC & refrigeration requirements. Our 3x1 suspension adds sophistication to any fabric duct system using a single tension cable and the new 3x1 hangers. We introduce the Adjustable Flow Device™ (AFD), the in-duct system that regulates fabric duct airflow and static pressure.