An Air Handling Unit (AHU) is a central component of HVAC systems, designed to regulate and circulate air for heating, ventilation, and air conditioning purposes. Incorporating various diffuser types such as square, circular, eyeball, and linear slot diffusers AHUs ensure optimal air distribution tailored to specific space requirements. Modern AHUs are engineered for energy efficiency, ease of installation, and minimal maintenance, making them ideal for diverse applications ranging from residential to large-scale commercial settings. Their modular design allows for flexibility in configuration, ensuring they meet the unique demands of different environments.