An air handler unit is one of the core parts of a modern HVAC system. It moves, conditions, and distributes air across commercial, industrial, and large residential spaces. When selected and installed correctly, it helps improve indoor comfort, airflow balance, filtration, and energy performance.

This guide explains what an air handler unit does, how it fits into HVAC design, and what buyers in Pakistan should consider before choosing one. It also compares major brand options, including Trane, Carrier, and Daikin. visit at https://workmanservices.com.pk