CE Kn95 mouth face mask for air pollution /good quality dust n95 disposable anti virus face mask n95 FFP2
CE Kn95 mouth mas k for air pollution /good quality dust n95 disposable anti virus mask n95 FFP2 Difference between KN95 and N95, and Difference between the mask with or without the valve: KN95 masks use the national standard GB2626-2019. The N95 mask uses the American NIOSH standard 42 CFR Part 84. N means Not resistant to oil, which can be used to protect non-oily suspended particles; 95 means that the filtration efficiency is greater than or equal to 95%. Therefore, N95 and KN95 both indicate that the filtration performance of non-oily particles can reach more than 95%, which can provide better protection in daily life. KN95 masks and N95 masks are used in non-medical places to prevent aerosol particles suspended in the air, including dust, smoke, mist and pathogenic microorganisms (such as bacteria and viruses). KN95 masks and N95 masks are available with or without a breather valve. Among them, a breather valve without a breather valve can effectively prevent droplet