· LEMENT KN95 Face Masks follow the GB2626-2019 respiratory protection standards,feature a filtration efficiency ≥ 95%,could offers more protection than general protective disposable masks.· LEMENT KN95 Face Masks are great choice to take along when you will be among people and want to stay safe.These KN95 face masks are good for daily use.· The face masks with soft elastic stretchable ear loop,which helps eliminate pressure on the ears for comfortable experience. Adjustable nose clip can help the mask perfectly attach onto your face.· These KN95 face masks provide several times the protection of disposable masks,which can be applied in home, office, school, park, playground, indoors, outdoors.· Disclaimer: This KN95 mask is NOT an N95 mask. For more information about KN95 masks please see the following before you purchase: amazon.com/AboutKN95s.