Ian Cull is the president of Indoor Sciences and has worked in the indoor air quality and building science fields since 1995. Previously, he served as vice president of the Indoor Air Quality Association (IAQA) from 2008-2011 and served as a director from 2006-2011. Cull has a Bachelor of Science in Engineering from the University of Illinois, Champaign-Urbana. He is a Licensed Professional Engineer (PE), a Certified Indoor Environmental Consultant (CIEC), and a Certified Indoor Air Quality Professional (CIAQP). Cull frequently lectures on indoor air quality and building science and has developed numerous seminars and certification courses on the topics.