✅【Included on FDA EUA List】WWDOLL KN95 face mask is manufactured by a certificated manufacturer Chengde technology Ltd,. Co which is included in FDA Emergency Use Authorization List. The filter efficiency of this KN95 mask is tested by NPPTL (National Personal Protective Technology Laboratory ), authoritatively prove that the filter efficiency of our KN95 mask is over 95%, which can protect you in the critical time. | ✅【5-Layer Face Mask】WWDOLL KN95 5-ply face mask is protective and high filter efficiency. The outermost 1 layer non-woven fabric can filter large particles, middle 2-layer melt-blown fabric can block more then 95% particles, 1 layer hot air cotton can filter pm2.5 and the innermost 1 layer non-woven fabric is skin-friendly and softer that give you the comfortable usage experience at the same time it protects your breath with high filter efficiency. | ✅【Powerful Protective Barrier】 Not easy to drop, no need to adjust it when you work. Softer elastic ear loop design of the face mask helps eliminate pressure on the ears for comfortable experience. Adjustable nose clip design can help the mask perfectly attach onto your face. This The four sides join tightly to the face; Hence, the protective mask KN95 avoids unfiltered air directly entering into. | ✅【3D Design】 The 3D shape of KN95 cup dust mask is designed according to the human face shape to ensure the tightness, to fit the human face, to increase the breathing volume when use the face mask. Our WWDOLL breathable face mask KN95 can greatly improve the permeability, and to make wearing and exhaling more comfortable. | ✅【Widely Applicable】 Our KN95 face mask 25 pack are unisex and all one size. A lightweight and foldable design makes these face masks easy to fold into your bag, easy to incorporate and save space. They can be applied in home, office, school, park, playground, indoors, outdoors and more congested and busy public places. 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