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This Video Explains How Face Coverings And Masks Minimize The Spread Of Covid-19

You know how we have all been debating on how effective nose masks are in minimizing the spread of the Corona virus? Well a group of researchers at University Of New South Wales used a LED lighting system and a high-speed camera to actually prove the effectiveness of different face coverings.

So these scientists captured a video of people sneezing and talking and coughing. In one scenario, the person was not wearing any mask; in two others, they wore two different types of cloth masks; and in the last one, the person wore a surgical mask.

This case study is a comparison of how effective face covering is

Image credit: UNSW

It was then revealed that a surgical mask was the most effective one at blocking droplets and aerosols when the person was either talking, coughing, or sneezing. However, the researchers say that if you can’t find yourself such a mask, “a cloth mask is the next best thing.” And apparently, the more layers there are, the more effective it is against the spread of the virus.

So in conclusion, the researchers said it is always better to wear a mask with at least two layers of fabric

imaage credit: UNSW

One of the things that the experiment also helped to see was that, while a single-layer cloth face covering can reduce the spread of droplets, it’s not as good as a two-layered one, let alone a surgical mask. Although researchers say that a 12-layered cloth mask is about as protective as a surgical mask, they “acknowledge it’s difficult to sew together 12 layers of fabric.” So here’s what they recommend: sew at least three layers together; use water-resistant fabric for the outer layer; choose a fabric with a tighter weave; and use hybrid (cotton–silk, cotton–chiffon, or cotton–flannel) fabrics as they provide better filtration.

Below is the full video:

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