Air Handling Units (AHUs) are integral components of HVAC systems, designed to regulate and circulate air within buildings for optimal climate control. They consist of fans, filters, heating/cooling coils, and dampers to condition and distribute air efficiently. Used in commercial, industrial, and institutional settings, AHUs ensure improved air quality, temperature control, and energy efficiency. Their modular design allows for customization based on airflow requirements, making them suitable for diverse applications.