Junjing Yang is a seasoned professional currently serving as the Head of the Built Environment Branch and Senior Scientist at the National Environment Agency since September 2021, focusing on indoor air quality risk assessments and bioaerosol science studies. Holding various roles within ASHRAE since July 2018, Junjing Yang acts as a voting member of the Environmental Health Committee, consultant member of SSPC62.1, and voting member of ASHRAE SGPC 10, in addition to chairing the TC2.1 Program subcommittee. Additionally, Junjing Yang has been a Guest Lecturer and Senior Research Fellow at the National University of Singapore since 2010, contributing to immersive learning and cutting-edge research in the built environment. Junjing Yang previously held the position of President of the ASHRAE Singapore Chapter from June 2022 to June 2023 and served as Treasurer and Committee Chairman from July 2015 to June 2021. Academic qualifications include a PhD from the National University of Singapore, an MSc in intelligent building from the University of Reading, and a BEng in Civil Engineering from Tongji University.