Mid-size bioaerosol chamber (IMAGE) University of Colorado at Boulder Caption Dr. Mark Hernandez, S. J. Archuleta Professor of Civil and Environmental Engineering, and CU PhD graduate Marina Nieto-Caballero, now a postdoctoral researcher at Colorado State University, standing inside a bioaerosol chamber in the Environmental Engineering disinfection laboratory at the Sustainability, Energy and Environment Complex (SEEC). Credit Patrick Campbell/University of Colorado Usage Restrictions None with credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.