Face shields are becoming a popular choice for people looking for protection against Covid-19. Photo: Dickson LeeFace shields are becoming a popular choice for people looking for protection against Covid-19. Photo: Dickson Lee
Face shields are becoming a popular choice for people looking for protection against Covid-19. Photo: Dickson Lee

Covid-19 research shows downsides of face shields and valve masks

  • US study finds the more comfortable alternatives give less protection than cloth and surgical coverings
  • Chinese doctor agrees, and describes exhalation valves as ‘selfish’ because they only protect the wearer

Topic |   Coronavirus pandemic
Face shields are becoming a popular choice for people looking for protection against Covid-19. Photo: Dickson LeeFace shields are becoming a popular choice for people looking for protection against Covid-19. Photo: Dickson Lee
Face shields are becoming a popular choice for people looking for protection against Covid-19. Photo: Dickson Lee
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