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Difference Between N95 and N99 Mask

N95 and N99 medical masks, in which "n" means particles that are not suitable for oil (such as cooking fume). "95" and "99" refer to the filtration efficiency of 95% and 99% under the detection conditions specified in NIOSH standard. The wearing time of the mask should not be too long, or it will cause dyspnea or discomfort. When it is found that the respiratory resistance increases and the mask is damaged, it shall be replaced immediately. N95 and n99 masks are special masks for protecting dust bacteria and other harmful substances. It conforms to N95 standard of National Institutes of health and occupational safety and GB19083-2003. The structure and composition are a special kind of microfiber filter material in the middle, and the two sides are made of non-woven fabric by heat combination. It is equipped with nose clip and mask belt.


[instructions] the mask can be used until it is damaged, contaminated by blood or body fluids, or discarded in accordance with local guidelines. In addition, masks should be stored in a clean environment to prevent damage, soiling, dust exposure, direct sunlight, high temperature and harmful chemical pollution. Masks should also be stored to avoid deformation. It can better achieve the use effect and protect the physical and mental health of the body


[note] it can't be sterilized with microwave oven. The nose clip is metal and is stuck on the mask. After microwave oven, it can't be reused.