N95 and KN95 class respirator is a self-absorption filter respirator against particulate matter. It is mask with no breathing valve. The filtration efficiency of KN95 respirator on particles with aerodynamic diameter ≥0.3 m is more than 95%.The aerodynamic diameters of airborne bacterial and fungal spores vary mainly between 0.7 and 10 m and are also within the range of protection.Has certain protective effect to the virus in the air.It can block coronavirus.Therefore, this type of mask can be used for respiratory protection of certain particles, such as polishing, cleaning and processing of mineral, flour and some other materials and other processes of dust, but also for the spraying of liquid or non-oily particles that do not produce harmful volatile gas.Can effectively filter and purify the inhalation of abnormal odor (toxic gas except), the virus in the air has a certain protective effect.It can block coronavirus.Helps reduce exposure to certain inhalable microbial particles (such as mold, bacillus anthracis, bacillus tuberculosis, etc.), but does not eliminate the risk of infection by contact, illness, or death.KN95 is one of the levels specified in Chinese standard gb2626-2006 and N95 is one of the levels specified in American standard 42 CFR 84.These two levels of technical requirements, test methods, protection level and so on basic kn95 daily biggest effect is to prevent haze and all kinds of dust in the air, non-oily particles and virus in the air have a certain protection!KN95 mask is oily particle filtering effect is greater than or equal to 95% of the level of masks, KN standard is the Chinese in America NIOSH formulated on the basis of the standard of dust mask, 95 represents the filtration efficiency is 95%, but the efficiency is for the most easily penetrate particles, the particle diameter is 0.3 microns, bigger than it than it small particles which are easy to be blocked, it can intercept coronavirus, therefore more recommend it.Consistent, just the standard that belongs to different country.Therefore, KN95 self-absorption filter respirator respirator mask, the global customers use and welcome.
