A fan may look like a straightforward piece of mechanical equipment until it is required to move air through a pharmaceutical plant, control smoke in a high-rise, exhaust fumes from an industrial facility, or maintain tightly controlled conditions inside a data centre. At that point, airflow becomes an engineering problem involving pressure, temperature, sound, energy consumption, safety and reliability. This is precisely where the HVAC and ventilation industry is becoming more specialised. As buildings and industrial facilities become more demanding, customers are increasingly looking for equipment that is not only available, but correctly engineered, tested and selected for the application. This shift has shaped the growth of Greenheck India, which has steadily developed its capabilities across air movement, air control and life-safety applications.