Scientists have evaluated the effectiveness of different COVID masks

Medical devices show the best results: depending on the type of fixation, treatment masks provide between 38.5 and 80 percent protection.

American scientists have investigated the effectiveness of different types of masks in protecting against coronavirus infection, Eurekalert writes. N95 respirators provide the most protection: 98 percent.

Medical devices show the best results: depending on the type of fixation, treatment masks provide between 38.5 and 80 percent protection.

Better to stretch a nylon stocking over the mask (80 percent protection) or secure with rubber bands (78 percent).

At the same time, the efficiency increases dramatically from 38 percent to 60 percent if the product is pressed against the face as much as possible, holding the ear muffs. Surgical masks with straps show a good result: 71.4 percent protection.

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Of the household masks, the most effective were the two-layer nylon masks: depending on the presence of a non-woven insert, they provide 74 to 79 percent protection.

Cotton scarves showed a more modest result: about 50 percent, polyester masks nearly 40 percent, balaclavas made of the same material, 38 percent.

Masks made of non-woven polypropylene showed a result of 28.6 percent, and three-layer cotton, only 26.5 percent.

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