We know why face masks are needed.CDCguidelines say they are critical in places where social distancing is difficult.
Shields are more practical than masks because they can be cleaned with soap and water, or regular disinfectants.
They can be reused endlessly, and can keep people from touching their faces.

Best of all, they are more comfortable.
The shield prevented the face shield-wielding robot from inhaling 96 percent of the virus.
It just physically can’t go through."

She found it easier to do everyday tasks in the shield, including enjoying a drink.
Plus, people can see your full facial expressions an easy-to-wear design fits over a baseball cap.
