Traditional Culture Encyclopedia - Photography major - What mask should be used to prevent COVID-19 epidemic?
What mask should be used to prevent COVID-19 epidemic?
A medical protective mask, the advantages of this mask are mainly moisture-proof, liquid-proof, and the particle filtration rate is higher than 95%. However, these masks are mainly provided to front-line medical staff. The better he takes precautions, the safer we will be.
Second, anti-particle masks. According to the types of filter particles, they can be divided into N type, R type and P type. To prevent COVID-19, N-type N95 and KN95 need to be selected. The filtration rate of N-type N95 and KN95 reached 95%. However, compared with the medical protective mask, this kind of mask has no advantages of moisture-proof and liquid penetration prevention. This mask is mainly suitable for the general public.
Third, medical surgical masks. Its moisture resistance and liquid permeability are high, but its air tightness is average. This mask is mainly suitable for suspected patients and can block most droplets.
Generally speaking, the above three masks are suitable for prevention.
(with photos: medical protective mask)
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