The KN95 is an industry standard for respiratory equiopment which has the intended effectiveness of filtering 95% of particulate grater than .3 microns.
KN95 with 4 Layers masks are considered respiratory protective equipment that conform to GB2626-2006 standards. They offer significant protection over standard surgical blue 3 ply masks
These masks are are approved to provide protection against harmful airborne matter.
$19.99 Regular Price