KN95 Mask - 20 Pack Five-Layer and three dimension protection filtering≥95% High static fiber, non-woven filter cotton GB2626-2006 approved KN95 rating FDA cleared for use Fluid resistance 80 mmHg Flammability Rating Class I Adjustable nose clip Particulate Respirator DISCLAIMER: The KN95 are for consumer use and NOT certified for use by nurses or doctors in a surgical or hospital environment.