Protection class : KN95 CHILD MASKApplicable : ChildrenMaterial : Non-woven FabricsSafety standard : GB2626-2006The KN95 Mask is a standard for respiratory equipment which filters 95% of particulates greater than 0.3 microns.Filtering Performance: equal to 95% @ 0.3 Micron or greaterThis KN95 protective mask effectively filters non-oily particles to serve as barrier to potential air pollutants that can be harmful. The face mask’s filtration efficiency of 5 layers will help block out PM2.5 air pollutants like allergens, virus, bacteria, dust, droplets and other harmful non-oil based particles in the air, at least up to 95 percent. It also features an adjustable nose wire to provide proper and comfortable fit to the face contour.- Has a respirator nozzle.Product FeaturesSeveral Colorful cartoon characters on the mask– Soft, lightweight materials for cool comfort– Comfortable knitted earloops– Formable nose wire for a custom fit on small faces– Not made with natural rubber latex.Wide application for children Who: --Are immuno-compromised--Have flu-like symptoms--Are visiting hospital patientsRespirator valve: Independent one-way breathing valve effectively reduces respiratory resistance.