Setup of air quality instrumentation (IMAGE) PNAS Nexus Caption Setup of air quality instrumentation during the measurement campaign in the Purdue zEDGE test house. Credit Brandon E. Boor 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.