N95 Mask

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The N95 mask is one of nine particulate protective masks certified by NIOSH (National Institute for Occupational Safety and Health). The N95 mask is not a specific product name. As long as it meets the N95 standard and passes the NIOSH review, it can be called a N95 mask. The N95 mask can be used for particles with an aerodynamic diameter of 0.24 ± 0.6 μm (physical diameter 0.075 μm ± 0.020 μm). The filtration efficiency reaches over 95%.
N95 mask foreign name: N95 face-mask
N95 Mask Certification Body: NIOSH
N95 mask category: protective mask
N95 mask classification: Cup N95 mask, folding N95 mask
N95 mask function: the filtration efficiency of particles with an aerodynamic diameter of 0.075µm ± 0.020µm reaches more than 95%

The N95 mask has a filtration efficiency of more than 95% for particles with an aerodynamic diameter of 0.075µm ± 0.02µm. The aerodynamic diameter of air bacteria and fungal spores mainly varies between 0.7-10µm, and it is also within the protective range of N95 masks. Therefore, N95 masks can be used for respiratory protection of certain particulates, such as dust generated during grinding, cleaning and processing of minerals, flour and certain other materials. It is also suitable for liquid or non-oily non-production caused by spraying. Hazardous volatile gas particles. Can effectively filter and purify the inhaled abnormal odors (except toxic gases), help reduce the exposure level of certain inhalable microbial particulates (such as mold, anthrax, tuberculosis, etc.), but cannot eliminate contact infection, illness or death risks of.

The US Department of Labor has recommended that medical personnel use N95 masks to prevent microbial airborne diseases such as influenza and tuberculosis.

NIOSH certified other anti-particulate mask levels also include: N95, N99, N100, R95, R99, R100, P95, P99, P100, a total of 9 types. These protection levels can cover the protection range of N95.

"N" means not resistant to oil, suitable for non-oily particles.

"R" means resistant to oil, suitable for oily or non-oily particles. If used for the protection of oily particles, the use time should not exceed 8 hours.

"P" means oil proof, suitable for oily or non-oily particles. If used for oily particles, the usage time should follow the manufacturer's recommendations.

"95", "99" and "100" refer to the level of filtration efficiency when tested with 0.3 micron particles. "95" means that the filtration efficiency is above 95%, "99" means that the filtration efficiency is above 99%, and "100" means that the filtration efficiency is above 99.7%.

In addition to the filtering efficiency of the N95 mask, the closeness of the mask to the face is one of the important factors determining the effectiveness of the mask. Different types of masks have large differences in their suitability to the human face. Therefore, before using a mask, the suitability of the mask should be checked first. During the tightness test of the wearer's face, ensure that air can pass in and out through the mask when it is close to the edge of the face.