Abstract Air conditioning is an important system for the comfort of human beings. The present paper is a review of the fundamentals of an air conditioning and the systems consisting of thermal distribution systems. Detailed study of the all air single duct and constant volume system has been carried out. Keywords: Air conditioning, all air system, thermal distributionCite this Article Badgujar AD. A Review of Thermal Distribution of All Air Airconditioning Systems.Journal of Refrigeration, Air Conditioning, Heating and Ventilation. 2017; 4(1): 13–17p.