By Or Fleisher, Gabriel Gianordoli, Yuliya Parshina-Kottas, Karthik Patanjali, Miles Peyton and Bedel Saget. Oct. 30, 2020

The public health debate on masks is settled, said Joseph G. Allen, director of the Healthy Buildings program at Harvard. When you wear a mask, “You protect yourself, you protect others, you prevent yourself from touching your face,” he said. And you signal that wearing a mask is the right thing to do.

With coronavirus cases still rising, wearing a mask is more important than ever. In this animation, you will see just how effective a swath of fabric can be at fighting the pandemic.