In this week's episode, Christoph and Chris are joined by special guest, Suzanne Blevins, Founder and Technical Director of Aerobiology. Aerobiology is an environmental testing laboratory with proficiency in fungal, bacterial and asbestos testing. Suzanne covers the topics of microbial content in building water, time changes in microbial population and takes us into the world of waterborne pathogens such as Legionella, Pseudomonas and Mycobacterium.