Health
Double-masking benefits are limited, Japan supercomputer finds – HT Tech
Wearing two masks offers limited benefits in preventing the spread of droplets that could carry the coronavirus compared to one well-fitted disposable mask, according…

Wearing two masks offers limited benefits in preventing the spread of droplets that could carry the coronavirus compared to one well-fitted disposable mask, according to a Japanese study that modelled the dispersal of droplets on a supercomputer.
The US Centers for Disease Control and Prevention recommended double masking in February, saying Americans should wear a cloth mask over a disposable mask, the latest change to its recommendations on face coverings.
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