Kathleen Hess-Kosa is the president/owner of Omega Southwest Consulting. She holds a Bachelor of Science degree in Biology, with a minor in microbiology and chemistry from Oklahoma State University and a Master of Science in Industrial Hygiene from the College of Engineering at Texas A&M University. In 1982, she was introduced to her first indoor air quality study and became enamored with building-related challenges. She has written numerous books upon the subject of indoor air quality.