In December, the government’s task force on pandemic response began requiring people to wear face shields on top of face masks whenever they leave their homesThe effectiveness of wearing face shields in preventing COVID-19 transmission has become a subject of debates. The United States Centers for Disease Control and Prevention is not recommending face shields as a substitute for masks, saying these are not as effective at protecting people from respiratory droplets. Face shields also have large gaps below and alongside the face. A study published in the journal Physics of Fluids does not find face shields helpful in deflecting droplets. But the DOH has insisted that wearing face shield together with a mask, and following physical distancing rules could decrease risk by more than 90%.

Source: Philippine Star June 03, 2021 10:02 UTC