The Kn95 mask can be used for breathing protection of certain particulate matter, such as dust generated by grinding, cleaning and processing of minerals, flour and certain other materials. It is also suitable for liquid or non-oily, non-hazardous volatilization caused by spraying. Particulate matter of gas. Can effectively filter and purify the inhaled abnormal odors (except toxic gases).
It can help reduce the exposure level of certain inhalable microbial particulates (such as mold, anthrax, tuberculosis, etc.), but it does not eliminate the risk of contact with infection, illness or death. So you can choose to wear kn95 mask when you think it is unsafe.
The wearing efficiency of kn95 masks on the particles with aerodynamic diameter ≥0.3µm can reach more than 95%. The aerodynamic diameter of airborne bacteria and fungal spores mainly varies between 0.7-10µm, which is also within its protection range. Therefore, this type of mask can be used for respiratory protection of certain particulate matter, such as grinding, cleaning and processing of dust generated by minerals, flour and certain other materials. It is also suitable for liquid or non-oily generated by spraying without generating Particulate matter of harmful volatile gas.
Kn95 masks can effectively filter and purify the inhaled abnormal odors (except toxic gases), help reduce the exposure level of certain inhalable microbial particulates (such as mold, anthrax, tuberculosis, etc.), but it cannot eliminate contact infection and illness And other risks.