Jeffrey C. May is certified as a microbial consultant and an indoor air quality professional. He is principal scientist at May Indoor Air Investigations LLC, where he specializes in identifying the causes of mold, odor, and moisture problems in homes, schools, and offices. In 2018, he was inducted into the Indoor Air Quality Association's Hall of Fame. He is the author of My House Is Killing Me! A Complete Guide to a Healthier Indoor Environment, 2nd edition and My Office is Killing Me! The Sick Building Survival Guide, both published by Johns Hopkins University Press. Connie L. May is a certified indoor air quality technician at May Indoor Air Investigations LLC. Together, they are the coauthors of Jeff May's Healthy Home Tips: A Workbook for Detecting, Diagnosing, and Eliminating Pesky Pests, Stinky Stenches, Musty Mold, and Other Aggravating Home Problems.