Zephyr Valve (IMAGE) Pulmonx Caption Zephyr® Endobronchial Valves, a minimally-invasive treatment option for emphysema/COPD. Credit Pulmonx Usage Restrictions None 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.