EBCare Smart Mask (IMAGE) California Institute of Technology Caption The EBCare mask can analyze the chemicals in one's breath in real-time. Credit Caltech/Wei Gao and Wenzheng Heng Usage Restrictions No restrictions. License CC0 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.