[ad_1]
“The visor Plastic is useless to prevent the spread of coronavirus“This was supported by a Japanese study, which through a computer simulation found that almost 100% of saliva droplets, smaller than 5 micrometers, are not filtered by the viewers. An alarming fact, if we take into account the wide diffusion of this type of protection devices, especially in some work sectors.In addition, approximately half of the largest drops, measuring 50 micrometers, manage to escape the filter of the visor.
READ ALSO Covid, nurse denounces: «I, infected by lack of masks. I infected my father and he died “
Plastic face shields DO NOT work: almost 100% of the tiny airborne droplets released by infected patients escape through the visors https://t.co/liXVzRQ9Er
– Daily Mail Online (@MailOnline) September 23, 2020
The study was conducted by the research center Riken, with the support of Fugaku, the fastest supercomputer in the world. “Judging from the results of the simulation, the effectiveness of the visors in preventing the spread of droplets of saliva from an infected person is quite limited compared to More expensiveSaid the leader of the investigation team. Makoto Tsubokura to The Guardian. “This is especially true for droplets less than 20 microns in size,” said the expert, explaining that virtually all the smallest particles managed to escape the visor filter.
The World Health Organization (WHO) maintains that plastic face shields can help prevent the virus, but they only work in conjunction with other safety measures, such as face masks, social distancing, and frequent hand washing. The visors, in fact, do not completely cover the face, leaving space for the droplets expelled by the mouth and nose to escape. Doctors, nurses and other healthcare professionals also use face shields in the first line against COVID-19, who nevertheless wear the surgical mask at the same time.
Last updated: 13:32
© REPRODUCTION RESERVED
[ad_2]
