Mask grade standard type

Masks are divided into three standard types: N represents the US standard, FFP is the European standard, and KN is the Chinese standard. Different standards have the same effect at the same level, such as N95 and KN95. If you donate such products, some hospitals will ask for a registration certificate.

Mask grade:

The European standard P is divided into three levels: P1 (FFP1), P2 (FFP2), and P3 (FFP3) according to the tested particle penetration rate. The minimum filtering effect of FFP1 is ≥80%, the minimum filtering effect of FFP2 is ≥94%, and the minimum filtering effect of FFP3 is ≥97%.

Chinese standard KN: Its detection method is the same as that of the United States. According to my country’s GB2626-2006 standard, masks are divided into KN and KP categories. KN refers to masks suitable for filtering non-oily particles, and KP refers to masks suitable for filtering oily and Non-oily particles. The number after the letter represents the protection level of the mask. The larger the number, the higher the protection level.

American Standard N/R/P

N95, N99, N100 can filter out at least 95%, 99%, 99.97% of suspended particles. N is Not resistant to oil, which can protect non-oily suspended particles. For example, the oily fume produced by cooking is oily particles, while the droplets produced by people talking or coughing are not oily. Generally, non-oily particulate matter refers to coal dust, cement dust, acid mist, microorganisms, etc. In the current haze pollution, most of the suspended particles are non-oily. Oily particulate matter refers to oil fume, oil mist, asphalt fume, etc.

R95, R99, R100 can filter out at least 95%, 99%, 99.97% of suspended particles.

R stands for Resistant to oil, which can protect non-oily and oily suspended particles, but when used for oily particles, the use time should not exceed 8 hours.

P95, P99, P100 can filter out at least 95%, 99%, 99.97% of suspended particles.

P stands for Oil Proof, which can protect against non-oily and oily suspended particles. Compared with the R series, the P series can be used for a relatively long time, depending on the label of different manufacturers.