When the composite glass fiber board air duct is connected with the muffler, fire damper, regulating valve and other accessories, the accessories must be provided with separate brackets, and the composite glass fiber board air duct cannot be used to bear its quality. Composite glass fiber board air duct has poor stiffness, so it should be installed in sections, and cannot be assembled on the ground as a whole to prevent the waist from breaking and damaging the air duct during hoisting. The concrete installation method of composite glass fiber board air duct is basically the same as that of ordinary air duct.

The weight of Freiburg air duct is1100 of that of iron air duct. Installed like curtains, general projects can even be installed independently by a single person. Steel wire rope suspension is adopted, which has low requirements for building structure.