Know More About Three Kinds Face Mask

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Know More About Three Kinds Face Mask

protective mask

Disposable mask

The main material is non-woven fabric, and the filtering effect is slightly higher than that of cotton masks. Medical masks that do not have the words "protection" or "surgical" on the name are ordinary-level disposable medical masks. This level of masks does not require blood blocking or adhesion requirements. For very small particles, disposable The protective effect of masks is not as good as that of protective masks. Therefore, it is only used for the general medical environment. But it can be used for larger particles, such as dust, pollen, fly floc.

Medical-surgical mask

Medical-surgical masks are used for the protection of droplet isolation. Medical-surgical masks are required to be worn in infectious disease departments and fever clinics. It is divided into 3 layers, the outer layer has a water blocking effect, which can prevent the droplets from entering the mask to the inside; the middle layer melt-blown cloth has a filtering function, which can block particles larger than 5μm in the air, and the filtering effect is ≥90%; The layer is used to absorb moisture. However, the filtration efficiency of medical surgical masks on particles is limited, and most of them are rectangular in design, and the adhesion to the face is not as tight as that of medical protective masks.

Protective mask

Medical protective masks are commonly known as N95 face masks. The filtration efficiency of medical protective masks for non-oily 0.3μm particles is greater than 95%. The medical protective masks have a good fit with the wearer's face, which can filter particles in the air and block flying. Contaminants such as foam, blood, body fluids, secretions, etc., can filter non-oily particles by more than 95% and are commonly used as personal protective equipment for airborne diseases.
disposable face mask

As the protection is higher, the breathability and hygroscopicity of the mask also deteriorate, which means that the wearing comfort is reduced, and the wearing time cannot be too long.

For the general public who are not high-risk occupational groups, it is not necessary to wear N95 masks to prevent new coronavirus pneumonia. Medical-surgical masks can also block most of the virus that is stuck on the droplets from entering the respiratory tract.


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