The spread of coronavirus with and without mask was shown in the video

LaVision employees posted a video showing the spread of coronavirus with

mask and without. The video was created using the method of detecting optical inhomogeneities, so you can clearly see if the mask is really an effective protection against coronavirus.

So, judging by the video, the mask really reducespotential risks of catching the virus, as it is able to block the flow of exhaled air, as a result of which people around are protected from the smallest particles of saliva.

According to the current dateinformation, in total more than 1 million infected with coronavirus are registered in the world. Of these, about 60124 people died. As for Russia, here the total number of infected is 4731 people, while 43 people died.

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