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Air filtration tips, as people head back to office

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With more people heading back to offices at this stage of the pandemic, we listen back to a conversation with Joseph Allen for some tips for improving air ventilation.

He’s director of Harvard University’s Healthy Buildings Program and author of “Healthy Buildings: How Indoor Spaces Drive Performance and Productivity.”

This article was originally published on WBUR.org.

Copyright 2022 NPR. To see more, visit https://www.npr.org.