The CDC’s new pneumonia prevention guidelines, released in February, recommend that people wear a fitted mask or two masks at a Time, but Japan’s RIKEN Institute released the results of its “Fuyuki” super computer simulation on the 4th, showing that there is no big difference between wearing one mask fitted and two masks at a time to prevent the spread of droplets. There is no big difference between wearing one mask and two masks at a time to prevent the spread of droplets.
CBS News reported at the time that the CDC had tested a variety of masks in the laboratory and found that adding an additional cloth mask to a surgical mask significantly reduced the risk of both spreading the virus to others and exposing oneself to the virus and contracting the disease.
However, researchers at the RIKEN Institute and Kobe University used a supercomputer “Fuyuki” to simulate the flow of virus particles by setting the average person to wear different types and combinations of masks, and found that the effectiveness of droplet prevention was 69% with one mask worn casually, but rose to 81% with the correct mask, and 85% when the mask was The effectiveness of the mask is 85% when the mask is placed close to the face, and the effectiveness of the mask with an additional layer of polyurethane outside the non-woven mask is 89%, which shows that the increase is quite limited.
Kobe University professor Tsubokura Makoto told Nikkei News that repeated wearing of the mask will lead to breathing difficulties and other disadvantages, and the effect is not increased by 2 times, it is better to wear the non-woven mask correctly from the beginning.
Japan’s “Tomigatake” super computer simulation results show that in preventing the spread of droplets, there is no big difference between wearing only one fitted mask and wearing two masks at once.
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