A duct made from gypsum boards is typically used for which type of air system?

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Ducts made from gypsum boards are typically utilized in return air systems due to their ability to provide a designed pathway for returning air to the HVAC system. These ducts are generally lightweight, non-combustible, and suitable for interior environments where moisture is controlled, making them ideal for indoor applications that do not handle conditioned supply air directly.

Return air systems focus on the process of drawing air from the living spaces back into the heating or cooling system. Gypsum board's structural integrity and noise-dampening qualities help create a quieter and more efficient return pathway. Additionally, their construction helps in maintaining the air quality within a building by controlling the return of air to the system, minimizing dust and contaminants.

While other systems like supply air, exhaust air, or combination air systems may use various types of ducting materials, gypsum board ducts are specifically engineered for the dynamics of return air systems. This specialization is based on airflow characteristics and the need for durability in environments where condensate or dirt build-up might be a concern.

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