making the kn95 kids face mask not easy to fall off DISCLAIMER - This KN95 mask is NOT an N95 mask. For more information about KN95 masks please see the following before you purchase: amazon.com ...

N95 masks can be used safely and effectively by ordinary citizens on a daily basis to fight air pollution. They are also good for industrial workers and other persons who are revealing themselves ...

The agency recommends different tiers of mask effectiveness in protecting individuals from COVID-19, with N95 masks as the most effective. KF94, KN95, double masks and fitted surgical masks are in ...

The N95 mask can filter at least 95% of airborne particles larger than 0.3 micrometer in diameter. So PM2.5 particles which are 2.5 microns in diameter can be filtered well by these masks.