Yu Xie Zhun Zhun Zhun 20202141317 "is the registration number of" Medical Protective Mask "of Henan Hongye Biotechnology (Group) Co., Ltd. This product is a second-class medical device registered by Henan Drug Administration, which consists of a mask body, a nose clip and a mask strap. The cover is composed of non-woven fabric, meltblown cloth and hot air cotton, and the filter material is meltblown.
The nose clip is made of plastic material, and the mask strap is made of elastic material. It is used to filter particles in the air and block droplets, blood, body fluids and secretions in the medical working environment.
N95 mask is one of nine kinds of anti-particle masks certified by NIOSH. "N" means that it is not suitable for oily particles (cooking oil fume is oily particles, but droplets produced by people talking or coughing are not oily).
"95" means that the filtration efficiency reaches 95% under the detection conditions specified by NIOSH standard. Masks are often used for occupational respiratory protection, including some microbial particles (such as viruses, bacteria, molds, etc. ).
The aerodynamic diameter of N95 mask is 0.3? The filtration efficiency of M particles is above 95%. The aerodynamic diameter of airborne bacterial and fungal spores is mainly 0.7- 10? M is also within the protection range of N95 mask. Therefore, N95 mask can be used for respiratory protection of some particles.