N95 question, please come to the master, what does N95 mean?

Nokia after-sales is the best appraisal department.

The meaning of N95 is a standard for the certification of masks by the National Institute for Occupational Safety and Health, which means that it can block 95% of non-oily particulate matter (95% is the minimum). In the spread of the new coronavirus, N95 standard masks can achieve excellent protective effect.

The letters represent the types of particulate matter, i.e., series, and there are three kinds; The numbers represent the filtration level of the mask when tested with micron particles, and there are also three;

1. N series: N stands for NotResistantTooil (not oil-resistant), which can be used to protect non-oily suspended particulates with a time limit of eight hours.

2. R series: R stands for resistanttooil (oil resistant), which can be used to protect non-oily and oily suspended particles, with a time limit of eight hours.

3. P series: P stands for oilproof, which can be used to protect non-oily and oily suspended particles, without time limit.

Both N95 and KN95 masks are protected against coronavirusThe coronavirus is mainly transmitted through droplets, and the stronger the filtering power of the mask, the better the effect on droplet blocking.

N95 and KN95 refer to the mask filtration standard, which has a filtration efficiency of 95% for non-oily particles, but N95 is a foreign standard for testing, while KN95 refers to the domestic certification standard. N95 and KN95 have better protective effects than disposable medical masks or medical surgical masks, which can be used for on-site investigation, sampling and testing, and can also be worn in highly crowded places or closed public places.

Precautions. The stronger the filtering capacity of the mask, the greater the breathing resistance, and the appropriate mask should be selected according to the risk level, which can not only effectively protect but also appropriately reduce the impact of the mask on breathing. In addition, N95 and KN95 masks also need to pay attention to their airtightness when using, and read the instructions before use.

To put it simply, it is a mask with better protection in Iwawa Town.

The N95 mask is one of nine types of particulate respirators certified by NIOSH (National Institute for Occupational Safety and Health).

n" means not resistant to oil.

"95" means that the particle concentration inside the mask is more than 95% lower than the particle concentration outside the mask under the specified number of special test particles. Of these, 95% is not an average, but a minimum. The protection level of N95 means that under the testing conditions specified in the NIOSH standard, the filter efficiency of the mask filter material for non-oily particles (such as dust, acid mist, paint mist, microorganisms, etc.) reaches 95%.

N95 is not a specific product name, as long as it meets the N95 standard and passes the NIOSH review, it can be called an "N95 type mask".

The N95 mask is one of the nine types of particulate protective masks certified by NIOSH (National Institute for Occupational Safety and Health).

N95 and KN95 Mask Implementation Standards: Masks are one of the nine dust mask standards developed by Niosh in 1995.

KN95 mask is the name of the Chinese national standard, KN stands for filtering non-oily particulate matter, and 95 stands for 95% filtration efficiency for micron particulate matter. Therefore, according to the national standard, it is the same as the American standard N95 mask, as long as it is a respiratory protection mask that passes 95% filtration efficiency and other indicators according to GB2626-2019, it can become a KN95 mask.

The difference between KN95 and N95 masks

That is, N95 is the standard of the United States, and KN95 is our standard in China, which means that it has at least 95% filtration efficiency for non-oily particulate aerosols, so it is because of the difference in this standard and process that the difference between KN95 and N95 is caused.

When buying N95 masks, many people did not pay attention to the details and bought "KN95 masks". Usually "KN95 masks" are much cheaper than "N95 masks". "KN95 mask" refers to a mask that meets China's national mandatory standards, and from the perspective of particle filtration effect, "KN95 mask" and "N95 mask" are the same.