He graduated from Seoul National University and received a masters degree at the same university. After working at a construction company, he received a Ph.D. degree at the University of Tokyo. His major research fields are indoor air quality including infection control and building ventilation. He has been working for establishing guidelines and conducting validation of the infectious disease isolation facilities funded by Korea CDC. He was also a member of the epidemiological investigation team supported by Korea CDC during MERS outbreak last year and conducted investigation on the ventilation systems of the hospitals where MERS-confirmed patients visited.