This week we discuss Advanced Indoor Environmental Quality (IEQ) with our Technical Director, Dr. Dietrich Weyel. We will start with a general discussion of the Advanced IEQ topics that will be included in the upcoming IAQTI/IAQA Advanced Indoor Environmentalist course and then get into some detail on particle physics and gasses. A good understanding of how particles and gasses behave in indoor environments is vital to successful IEQ consulting and contracting. Dr. Weyel "Dieter" holds an Sc.D. in Environmental and Occupational Health from the University of Pittsburgh. He taught at the University of Pittsburgh and Duquesne University, and he also has worked in the private sector at Bayer Corporation prior to starting his private consulting practice. This week he helps us LEARN MORE about Advanced IEQ, particles, gasses and more on IAQ Radio.