AHU (Air Handling Unit) is an important component of HVAC systems used in the pharmaceutical industry. AHU is used to control the temperature, humidity, and air quality of the environment. It helps to maintain a clean and sterile environment, which is essential for the production of pharmaceutical products. AHU also helps to reduce the risk of contamination by filtering out dust, pollen, and other airborne particles. Additionally, AHU helps to reduce energy costs by controlling the temperature and humidity levels, which can help to reduce the overall operational costs of the pharmaceutical industry.