Dr. Kowalski holds a PhD in Architectural Engineering from The Pennsylvania State University. He has authored numerous articles on the topic of airborne disease control technologies including the widely cited Ultraviolet Germicidal Irradiation Handbook. He was previously chairman of the Air Treatment Group of the International Ultraviolet Association (IUVA) and works on UV standards in collaboration with ASHRAE, ASTM, and other professional societies. He also serves on the Underwriters Laboratories UL 8800 Photobiological Safety Committee. He is lighting systems designer and a former medical marijuana grower, and serves on the ASTM International D37 Cannabis committee.