kn95 disposable face mask 25 pack - miuphro 5-ply breathable safety masks against pm2.5, dispoasable respirator protection mask for men and women black miuphro <br><b>about our product</b> <br><br>miuphro kn95 5-ply foldable kn95 mask is made from chengde technology co., ltd. suitable for adults’ daily travel protection. the kn95 mask is not to be used as a replacement for gas masks or as a medical mask. <br>the mask cannot generate oxygen and should not be used in hypoxic environments. when used properly the mask provides a ≥ 95% filter efficiency and effectively protects respiratory health.