Aerosol chamber (IMAGE) Colorado State University Caption Assistant Professor of Trombone Drew Leslie volunteered for the study at Colorado State University that looked at respiratory emissions from wind instruments. Credit Ron Bend/Colorado State University Usage Restrictions None 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.