Jeff May is Principal Scientist of May Indoor Air Investigations, LLC in Tyngsborough, MA. Author of four books on IAQ (published by The Johns Hopkins University Press), including My House is Killing Me and The Mold Survival Guide, Jeff has been investigating building problems in homes, schools and office for over 25 years, and has examined by microscopy over 35,000 air and dust samples. A nationally recognized speaker on IAQ topics, Jeff is a member of IAQA, the Pan American Aerobiology Association, American Chemical Society, and the New England Chapter of the American Industrial Hygiene Association, among others. He is a Certified Indoor Air Quality Professional (CIAQP, Association of Energy Engineers), and is a licensed Mold Assessor in the state of Florida. He holds a B.A. from Columbia College (chemistry) and an M.A. from Harvard University (organic chemistry), and has served as an Adjunct Professor in the Department of Work Environment at the University of Massachusetts Lowell.