In order to “maximize protection” against COVID-19, researchers recommended layering two types of masks or using a three-layer mask to keep particles out
There’s just one pesky problem to covering your mouth and nose with multiple layers of material: “At some point, ‘we run the risk of making it too hard to breathe’”
In the included video, Dr. Ted Noel uses a vaping device and several different types of masks — including disposable and cloth — to illustrate that vapor clearly passes around and through the masks
The first randomized controlled trial of the effectiveness of surgical face masks against SARS-CoV-2 infection found masks did not statistically significantly reduce the incidence of infection
Researchers writing in PeerJ said cloth masks have “poor filtering efficiency” due to large, open pores present in the masks; this got even worse after washing, with filtering efficiency dropping by 20% after the mask was washed and dried four times
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Is Wearing Three Masks Better Than One?
STORY AT-A-GLANCE
In order to “maximize protection” against COVID-19, researchers recommended layering two types of masks or using a three-layer mask to keep particles out
There’s just one pesky problem to covering your mouth and nose with multiple layers of material: “At some point, ‘we run the risk of making it too hard to breathe’”
In the included video, Dr. Ted Noel uses a vaping device and several different types of masks — including disposable and cloth — to illustrate that vapor clearly passes around and through the masks
The first randomized controlled trial of the effectiveness of surgical face masks against SARS-CoV-2 infection found masks did not statistically significantly reduce the incidence of infection
Researchers writing in PeerJ said cloth masks have “poor filtering efficiency” due to large, open pores present in the masks; this got even worse after washing, with filtering efficiency dropping by 20% after the mask was washed and dried four times
