Are you looking to update your coronavirus face mask? A recent study identified the most and least effective face masks, with one face mask in particular claiming that the No.1 spot is most effective at limiting the spread of COVID-19.
Duke University researchers compared 14 commonly available masks and face masks to see which was most effective at stopping the spread of respiratory drops. The best face masks for preventing the spread of drops were N95 masks without flaps, they found, while fleece covers and bandanas were “counterproductive.”
The main route of spread of coronavirus is said to occur from person to person through respiratory droplets containing the virus as an infected cough, sneeze or chat. These drops can land in the mouths or noses of nearby people, according to the Centers for Disease Control and Prevention (CDC).
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Researchers are testing 14 different face masks as mask alternatives. (Emma Fischer, Duke University)
It is also estimated that up to 40% of those infected have no symptoms, emphasizing the need for widespread use of face masks to limit the spread of viruses.
Researchers used a simple optical measurement method from a mobile camera and laser pointer to illuminate particles emitted by someone wearing a variety of face masks and masks.
They found that neck fleece, like bandanas, “offered very little protection” and actually spread large drops in a multitude of smaller drops.
“Considering that smaller particles carry air longer than large droplets (larger droplets drop faster), the use of such a mask may be counterproductive,” the study authors wrote.
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Cotton masks offer more protection, and surgical masks are even better at blocking drips, researchers found.
Finally, vital, non-valve N95 masks performed “far superior” to valve N95 masks because the exhalation valve opens to strong outflow of air, making those in the vicinity more at risk for exposure, researchers said. .
The study was published Friday in Science Advances.
Fox Sor ‘Stephen Sorace contributed to this report.
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