Device to study masks and respiratory droplets (image) American Institute of Physics Share Print E-Mail Caption The device used by researchers to study how masks block simulated respiratory droplets carrying the COVID-19 virus. Credit Javed Akhtar Usage Restrictions Journalists may use this image only with appropriate credit. Share Print E-Mail 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.