In addition to the filter efficiency of the KN95 mask, the density of the mask and face is one of the important factors determining the effect of the mask. Different types of masks show great differences in their suitability for the human face. Therefore, when using KN95 masks, the suitability of the masks should first be tested. When checking the tightness of the wearer's face, ensure that air can enter and exit through the mask when it is close to the edge of the face. Let's read the following words and get more information about the KN95 mask.
What is the difference between KN95 mask and N95 mask?
What should I pay attention to when using KN95 masks?
What are the functions and uses of KN95 masks?
What is the difference between KN95 mask and N95 mask?
There's no difference between the two. The KN95 mask is one of the stages specified in the Chinese standard GB2626-2019. N95 masks are one of the classes specified in the US standard 42 CFR 84.
Among them, N does not mean oil resistant, which can be used to protect non-oily suspended particles; 95 means filtration efficiency is greater than or equal to 95% indicating that this respirator can block at least 95% of very small (0.3-micron scale) test particles after careful testing.
What should I pay attention to when using KN95 masks?
Respiratory infectious diseases are not only transmitted through the respiratory tract;
Precautions should precede exposure;
The tight structure and highly efficient filtration of KN95 masks increase breathing resistance and reduce comfort.
If the design of the KN95 mask is not suitable for the user's face shape, this will affect suitability and lead to leaks.
When KN95 masks meet the requirements for suitability and correct use, protective masks can effectively reduce the pollutant concentration by 90% ;
The government has not set safe exposure limits for pathogenic microorganisms, and respiratory protection can only reduce but not eliminate the risk of disease.
What do I need to consider when using the KN95 mask?
Do not squeeze the mask with your hands, including KN95 masks, you can isolate the virus only on the surface of the mask. If you squeeze the mask with your hands, the virus with the droplets penetrates through the mask, and there is still a possibility of getting infected with the virus.
Make sure that the KN95 mask fits the face as well as possible. The simple test method is: After wearing the mask, exhale vigorously, the air cannot escape at the edge of the mask.
What are the functions and uses of KN95 masks?
The filtration efficiency of KN95 masks for particles with an aerodynamic diameter of 0.3 µm reaches more than 95%. The aerodynamic diameter of air bacteria and fungal spores varies mainly between 0.7-10 µm, which is also within the protection range of KN95 masks. Therefore, KN95 masks can be used to protect breathing from certain particles, such as dust generated by grinding, cleaning and processing minerals, flour and certain other materials, and also suitable for liquid or non-oily products, which are produced by spraying and do not create harmful fine dust from volatile gases. Can effectively filter and purify inhaled abnormal odors (except toxic gases), helps to reduce exposure to certain breathable microbial particles (such as mold, anthrax, tuberculosis, etc.) but does not eliminate the risk of contact infections, diseases or deaths.
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