The COVID-19 pandemic forced many countries to implement many restrictions to ensure people's safety from the viral infection. Different face masks are being developed, each claiming that they are efficient enough to prevent the transmission of the viral disease.
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The droplets only traveled 2.5 inches with a quilted face mask, and eight about inches when cone-style masks are used. Compared to the folded handkerchief, the droplets traveled more than 3 feet, and with a bandana made of T-shirt material, the droplets traveled 7 inches.
Here are the lists of facemasks from most to least effective.
1) Stitched mask made from quilting cotton
2) Cone masks
3) Mask made from a folded handkerchief
4) Bandana masks
"Our observations suggest that a higher thread count by itself is not sufficient to guarantee better stopping-capability; The bandana covering, which has the highest thread count among all the cloth masks tested, turned out to be the least effective," reminded by the researchers.
According to the report, the World Health Organization (WHO) released guidance on exactly what people should do look for in a face mask made for cloths in early June. Here's the guideline;
1) The inner layer of the face-covering should be made of cotton or other absorbent material.
2) There should be at least three layers of fabric.
3) The face mask's outer layer should be made of polyester/polyester blend or other non-absorbent material.
4) The middle layer of the face-covering should be made of polypropylene, or other non-woven material, which will be a barrier.
