The U.S. Centers for Disease Control and Prevention hasreleasednew guidance about the best ways to use masquerade to help foreclose transmittance of covid-19 . One key recommendation foreground the added benefits of using a more snugly meet mask or match a cloth mask with a surgical mask . Experimental information collected by the agency suggests that either selection should greatly foreshorten the risk of transmission between hoi polloi .
Rochelle Walensky , the newly appointed CDC film director , talk about the Modern recommendations during a White House coronavirusbriefingon Wednesday . Walensky first reiterate the current consensus that properly worn masque can avail limit the spread of the coronavirus . Some masks are better at protect the wearer from infection ( N95 and KN95 masks in particular ) , but they all determine the outward transmission of potentially infectious droplet and aerosols to others . unexampled research from the CDC , however , lookedat the relative effectiveness of unlike method acting using fabric and surgical mask and how it could be better .
In the study , even cloth masks were more effective than no masks at specify the scatter of aerosol and droplet particles the size of it of those emit by people with covid-19 . But operative masks that were more snugly fit or that had a cloth mask worn on top of them were the most effective at protecting the user and others . In an experiment that sham being expose to an infective somebody breathing nearby , make both parties wear better - fitted or bivalent - superimposed masks slim down the level of exposure by more than 95 per centum , Walensky said , compared to no mask at all .
Photo: Sean Gallup (Getty Images)
“ I need to be clean that these new scientific data issue today do not change the specific recommendations about who should jade a masque or when they should wear one , but they do provide new information on why wearing a well - fitting mask is so important to protect you and others , ” she added .
The CDC has nowupdatedits site on improving the effectiveness of masks based on this fresh data . To make surgical mask comfortably - fitting , for example , the CDC recommends first knot the strands of the spike loops and tucking in the KO’d stratum of the masquerade framework ( there ’s a helpful guidebook and visualprovidedby the CDC if that description is n’t exculpated enough ) . There are also other Cartesian product , such as masquerade party fitters and braces or masks with olfactory organ bridges , that will make a masque nasty . However it ’s done , you could assure a mask is snug enough if you could finger quick gentle wind hail through the front of the masque and the mask moves with every breathing place you take .
As for twofold - masking , the CDC recommend either outwear a cloth mask with multiple layers or wearing a cloth masque over a surgical mask . However , it does n’t advocate wearing two operative masquerade party at once , or flux an KN95 mask with any other masque ( to be fair , these mask are already very good at auspices when wear thin correctly ) .
In addition to wearing mask in populace , people should obviously still practice strong-arm distancing whenever possible , stave off crowded indoor spaces , and wash their hand regularly .
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