KN95 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 than 95% particles, 1 layer hot air cotton can filter pm 2.5 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. The 3D shape of KN95 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.