To save energy, improving the working efficiency of ventilation ducts and reducing energy loss is a good choice. In some high-end buildings, small household central AC spiral ducts have become the first choice and are gaining more popularity. As a result, the use of various ventilation and AC ducts has increased.

Basic Functions of Ventilation Hoses
1.The duct hose transports air quietly or has a silencing function.
2.It prevents air in the duct from leaking and stops outside air from intruding.
3.The ventilation hose has a long service life and is easy to maintain.
4.It transports hot and cold air to various parts of a building, ensuring air temperature, relative humidity, flow speed, and cleanliness remain unchanged.
Currently, the market offers many types of air ducts. Besides iron sheets and FRP air ducts, a new type of composite high-temperature insulated air duct has emerged.
High-Temperature Insulated Air Ducts
These ducts mainly consist of double-sided composite protective layers with insulation layers, typically foam and glass wool. Common duct boards include aluminum foil composite phenolic foam boards. Such ducts perform well: they are clean, lightweight, and easy to install. Now, they are widely used in various buildings.