Researchers at Harvard say masks, air circulation & cleaning make air travel safe Recent findings released by researchers from the Harvard T.H. Chan School of Public Health indicate air travel “is as safe or substantially safer” than routine activities like grocery shopping or eating out at restaurants — because airlines have implemented robust, multi-layered safety measures which can effectively reduce the risk of exposure to COVID-19 onboard aircraft. 3 min read October 27, 2020 Keep up with Alaska