Heating, ventilation, and air conditioning (HVAC) is a technology concerned with the thermal comfort and air quality of an indoor environment. By heating or cooling air with various systems and components, the temperature of a building can be controlled with ease. To route such treated air and ensure its proper distribution throughout a building, a number of air ducts may be implemented. Depending on the need of the system and recommendations by HVAC professionals, a number of air duct types may be chosen from.
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