Douglas S. Gardenhire completed his doctoral degree at the University of Georgia. He is Chairman of the Department of Respiratory Therapy at Georgia State University in Atlanta, Georgia. He is the author of Rau’s Respiratory Care Pharmacology, lead author for the American Association for Respiratory Care’s Guide to Aerosol Delivery Devices for Respiratory Therapist, chapter author on Airway Pharmacology for Egan’s Fundamentals of Respiratory Care, as well as chapter author on Airway Pharmacology and Delivery of Aerosol Drug Therapy in Respiratory Care Clinical Lab Competency Manual. Dr. Gardenhire has authored many peer-reviewed articles on respiratory care education and aerosol medication.

His research interests continue to focus on respiratory care education and trends, pulmonary case reports, pharmacology, and aerosol product evaluation.