air return

**air return**
The term “air return” refers to the pathway through which indoor air is drawn back into an HVAC system to be filtered, conditioned, and recirculated. Proper air returns are essential for maintaining balanced airflow, improving indoor air quality, and ensuring efficient heating and cooling in residential and commercial buildings. This tag is used for content related to HVAC systems, ventilation design, air circulation, and maintenance tips concerning return air ducts and registers.