Risto Sakari Kosonen, born on February 2, 1960, is a Finnish citizen and an acclaimed expert in HVAC technology. He is a Full Professor at Aalto University and a Distinguished Professor at Nanjing Tech University, China. With a Doctor of Science degree from Helsinki University of Technology, he has an extensive academic and professional background. Prof. Kosonen has been pivotal in advancing HVAC technology through his research, securing around 4.5 million euros in external funding. He has supervised numerous PhD and Masterβs theses and has published extensively. His contributions to the field have earned him multiple prestigious awards, including the European REHVA Professional Award in Technology. Prof. Kosonen also holds ten European patents and has played significant roles in organizing international conferences and workshops, shaping the future of HVAC and building technology. ππ¬