How much protection do plastic face shields provide, and is it a good idea to wear one? ArefaMD breaks down what you need to know to InStyle:
with the flu virus that face shields may partially block breathing in droplets of the virus, especially when it’s combined with keeping a six-foot physical distance from others.” Though the flu virus and the coronavirus are different, this research shows face shields may help prevent some spread through respiratory droplets in general.
What’s more, Dr. Berger says the user might have a false sense of security while wearing a face shield and abandon other rules of social distancing. He also emphasizes that in order to be fully protected while wearing a shield, the wearer needs a face mask that filters air, as well. At the moment, the Centers for Disease Control and Prevention does not recommend wearing a face shield, Dr. Cassoobhoy points out.
Another time a shield might be helpful? “If you’re exercising outside and aren’t comfortable wearing a face mask, a face shield could be an option to add some level of protection.” Another benefit is that unlike medical face masks, it’s been easier to ramp up production of face shields to meet the demand of medical workers and the public, according to Dr. Cassoobhoy. So if you choose to wear one, you’re not likely taking supply away from essential workers.
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