Sheet Metal · 2022年1月8日

The difference between N95 and KN95

The difference between N95 and KN95

KN95 masks

KN95 is a Chinese standard mask

KN95 respirator is a kind of respirator with filtration efficiency of particulate matter in our country

KN95 masks and N95 masks are virtually the same in terms of particulate filtration efficiency

KN95 is a Chinese standard mask

Source: Chinese National standard GB 2626-2006 respiratory Protective Equipment Self-priming Filter Respirator against Particulate Matter

(1) Standard sources

This standard is a mandatory National standard of China, proposed by the State Administration of Work Safety and promulgated by the National Technical Committee for the Standardization of Personal Protective Equipment (SAC/TC 112).

(2) Technical content

In terms of the scope of application, this standard is applicable to ordinary respirators with self-suction and filtration protection for all kinds of particulate matters, such as masks, and not applicable to other special environments (such as anoxic environment, underwater work, etc.)

In terms of the definition of particulate matter, this standard defines various forms of particulate matter, including dust, smoke, fog and microorganisms, but does not define the size of particulate matter.

From the level of filter elements, it can be divided into KN class for filtering non-oily particles and KP class for filtering oily and non-oily particles, and this is marked, which is similar to N and R/P stipulated in CFR 42-84-1995 interpretation guidelines.

From the level of filter elements, it can be divided into KN class for filtering non-oily particles and KP class for filtering oily and non-oily particles, and this is marked, which is similar to N and R/P stipulated in CFR 42-84-1995 interpretation guidelines

N95 respirators are one of nine respirators certified by the NIOSH (National Institute for Occupational Safety and Health) for particulate matter.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 mask with a filtration efficiency of more than 95% for particles with aerodynamic diameter of 0.075 m±0.020 m.

The difference between N95 and KN95

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