The difference between kn90 and kn95 is that the protective grade of mask kn90 is lower than kn95, and then kn95 has higher filtration efficiency than kn90, but the permeability of kn95 is not as good as kn90. Kn90 is mainly suitable for industries that produce oily and non-oily particulate pollutants such as dust, smoke and fog with a diameter of 0. 185 micron or more, such as nonferrous metal processing, metallurgy, steel, coking, gas and organic chemical industry. Kn95 can be used for respiratory protection of some particulate matter, such as dust generated in the process of grinding, cleaning and treating minerals, flour and some other materials.

The difference between kn90 and kn95

1, different grades

The letter KN of KN95 mask stands for China standard, the number 95 is the protection level, and so is kn90 mask. The number 90 is the protection level. Therefore, the first difference between kn90 and kn95 is that the protection level of mask kn90 is lower than that of kn95.

2. Different filtration efficiency

Mask kn90 can filter more than 90% of particles, and mask kn95 can filter more than 95% of particles. However, the higher the filtration efficiency of the mask, the worse the air permeability. Therefore, kn90 has better air permeability than kn95.

3. Different usage scenarios

KN90 is mainly suitable for industries that produce oily and non-oily particulate pollutants such as dust, smoke and fog with a particle size of 0. 185 micron or more, such as nonferrous metal processing, metallurgy, steel, coking, gas, organic chemical industry, food processing, construction, decoration, petrochemical industry and asphalt. KN95 respirator can be used for respiratory protection of some particulate matter, such as dust produced in the process of grinding, cleaning and treating minerals, flour and some other materials, and also suitable for liquid or non-oily particulate matter produced by spraying that does not produce harmful volatile gases.