Lewis Exner is the director of field operations at Controlled Environment Consulting, LLC (CEC) in Bethlehem, Pennsylvania. With over 30 years of experience in cleanroom and containment device certification, he has held accreditations with NSF, NEBB, and CETA. Lew was instrumental in developing a cleanroom technician training program and has performed thousands of airflow visualization smoke studies in both pharmaceutical (cGMP) and pharmacy
(503A and 503B) locations. At CEC, he oversees the
certification service, training operations, and the microbiology laboratory.