The pandemic has gained momentum to cause more deaths all over the world. All scientists and health workers are advising the public to wear masks in order to control the spread of the infection, and it’s probably one of the most simple ways too. Although many people have started to buy medical masks from the pharmacy, some are interested in homemade DIY masks, which is of different size, different material, and also less effective in preventing the spread.
Researchers at Florida Atlantic University have done an experiment to know which of the non-medical face masks is highly effective against SARS-CoV-2. They designed a mannequin’s head to simulate a person’s nasal passage and it was mounted at a height of 5’8″, to approximate the height of an adult male. They used a manual pump and a smoke generator to simulate a human sneeze. The path of the droplets was detected and mapped with the help of a laser. They studied how different designs and materials alter that pathway.
They found that the droplets from an uncovered person travel around 8 feet. When it comes to other kinds of masks, that distance gets reduced. With the bandana type masks made with a handkerchief or T-shirt, the droplets traveled around 3 feet, while with the folded cotton handkerchief, it traveled 1.25 feet. Notably, with the cone style mask, it’s distance reduces to 8 inches and with the stitched-quilting fabric mask, the distance further reduces to 2.5 inches.
This proved that a well-stitched fabric mask was the most effective at least spreading the droplets when we speak about non-medical masks. This stitched fabric mask was made from two layers of quilting fabric, thereby reducing the distance. Even though bandana has the highest thread count, it is the least effective.
How to make a fabric face mask
This video from YouTube channel Crafty Daily demonstrates an efficient way to make one at home.
We know that face masks are currently the only way to slow down the infection. The WHO recommends the people not to wear loose masks and to keep the mask tidy by washing with detergent or soap for its reuse.
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Source: Daily News