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Coronavirus: Bandana is least effective form of face mask, study says


Scientists at Florida Atlantic University are experimenting with different non-medical masks to find the most effective face covering to help stop the spread of COVID-19.

They “delivered” a sneeze or cough from a mannequin head wearing varying face coverings, and used lasers to detect respiratory droplets.

Their results showed that droplets from an uncovered cough were able to travel more than 8 feet.

Droplets from a bandana-covered cough traveled three feet.

With a folded cotton handkerchief, droplets traveled a feet and three inches.

And with the cone-style masks, they traveled about 8 inches.

Stitched-quilting fabric masks were the most effective, with droplets traveling 2.5 inches.

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