Dr. Govind Rao was quoted in an April 2022 article by Cortney Moore for Fox News titled "Should you still wear a mask today? What all of us should know now".
"The purpose of a mask is to filter the air that is entering and exiting your lungs," said Govind Rao, a professor at the University of Maryland, Baltimore [County]. "[Masks are designed for] filtering out particles, including virus."