NYU Tandon AirMOD Design for CPAP Machine (IMAGE) NYU Tandon School of Engineering Caption The AirMOD closed-loop systems employ non-vented face masks instead of traditional vented masks, drastically limiting direct exhalation to the environment, and such off-the-shelf components as viral filters, oxygen enrichment adaptors, tee-connectors, and positive end-expiratory pressure (PEEP) valves. Credit Vikram Kapila, Ph.D. Usage Restrictions For use by registered reporters only License Licensed 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.