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Medical surgical masks can isolate large particles such as droplets, and the outer layer is a waterproof layer, which can block liquid splash. However, the surgical mask cannot effectively filter the fine particles in the air, and the surgical mask design is not sealed, and it cannot completely prevent air from entering the gap in the edge of the mask.

N95 masks are particulate protective masks, which can filter non-oily solid or liquid particles with a diameter of 0.3 micrometers or more. However, each time you wear a N95 mask, you must test the tightness of the edge of the mask (Fit Test) to ensure that there is no air leakage. Real protective effect. Therefore, N95 masks are not suitable for people with hair on their faces and children, because these people cannot guarantee the tightness of wearing N95 masks.

In addition, people with chronic respiratory disease, heart disease, or other people with breathing difficulties should consult their doctor before using N95 masks, because N95 masks will make it harder for the wearer to breathe.

How to choose the right mask?

If the germs are mainly transmitted through large droplets (for example, the patient sprays droplets from sneezing or coughing on other people), it is more appropriate to wear ordinary waterproof surgical masks for protection.

If the particles of germs or harmful substances are relatively small and can be suspended in the air for a long time, a large number of them can be transmitted through the air, then the protective effect of wearing industrial N95 masks will be better. N95 masks are CDC approved tuberculosis, SARS and other airborne Minimum protective masks for diseases;

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Post time: Mar-27-2020