Wholesale high quality household disposable face masks with boxes

The filtering efficiency of approximately Kn95 masks for particles with an aerodynamic diameter ≥ 0.3µm is above 95%. The
aerodynamic diameter of air bacteria and microparticles mainly varies between 0.7-10µm, and at the same time its protection range.Therefore, this type of mask can be used for respiratory protection of certain particulates, such as sanding, cleaning and
processing of minerals, flour and some other materials. It is still suitable for liquid or non-oily non-production caused by
spraying. Hazardous volatile gas particles.Can effectively filter and purify the absorbed abnormal odors (except for toxic gases), help reduce the exposure level of certain
absorbable microbial particles (such as molds, anthracnose, tuberculosis, etc.), but cannot eliminate contact infection, illness
or death risks of.The KN95 grade is one of the grades specified in the Chinese standard GB2626-2006, and the N95 is one of the grades specified in
the US standard 42 CFR 84. The technical requirements, test methods, and protection levels of these two levels are basically the same, but they belong to different national standards. *