Aerience (Institute of Air Science & Contamination Control) is a unique training Institute located in Pune (India), conducting training programmes for practicing engineers and engineering students (graduate as well as post graduate) in HVAC. The training programmes are practical oriented and have proved to be an asset to the individuals and organizations Our training programmes are structured in such a way that the participants become conversant not only with the fundamentals but also get hands on experience on different instruments and equipments. The case studies during the training enhance technical competence of our participants.