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The thicker the mask, the better the anti-virus effect?

2017-03-28 00:00:00

Rumor identification:

The thickness of the mask is not equal to the protective effect.

Rumor analysis:

1. Medical surgical mask: it is thin and generally has three layers, from the outside to the inside are waterproof layer, filter layer and comfortable layer. The comfortable layer is a layer of gauze. The medical surgical mask can block 70% of the pathogenic bacteria.

2. Medical protective mask (N95 mask): commonly used N95 masks are actually divided into two types: one is biological mask (blue-green), model 1860 or 9132; the other is dust mask (white), model 8210. At the time of purchase, you should choose the biological resistant medical protective mask, N95 mask can block 95% of the pathogenic bacteria.

3. Cotton gauze mask: it is thick and may be made of cotton cloth, gauze, wool, canvas, etc. because the material itself is not dense enough to prevent infection, it can only block 36% of pathogenic bacteria, or even less.

Special tips:

Although medical surgical mask and medical protective mask are thin to touch, they have high filtering efficiency and can effectively prevent virus invasion. And the general cotton mask on the market, although thick, basically does not have the function of preventing infectious diseases.