Photo 2 (IMAGE) Nanyang Technological University Caption The study involved data gathering from study participants in an environment simulating an indoor workspace, with varying air quality depending on the different combination of air filters used. The air filters used (also pictured) are from Camfil, NTU’s industry partner for the study. Credit NTU Singapore Usage Restrictions Use with mandatory 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.