Non-Woven/ Melt-blown fabric Imported 【Filter Efficiency ≥ 95%】 KN95 masks are constructed with 2 non-woven outer layers and 2 melt-blown inner filters, providing superior protection compared to standard disposable 3-ply masks. The filter efficiency is ≥ 95%. 【Perfect 3D Design】 The mask features an ergonomic 3D shape designed to conform securely to the face, mouth, nose, and chin. This design prevents fogging of glasses and ensures the integrated nose clip remains securely in place. 【Skin-friendly and Comfortable】 These KN95 masks utilize skin-friendly non-woven fabric to prevent skin irritation. They are equipped with high-elastic ear loops and an adjustable nose clip for a comfortable fit without ear strain. 【Multiple Protection】 Offering several times the protection of disposable masks, they are suitable for various environments. 【Thinner and Lighter】 Despite being made of 4 layers, these masks deliver protective performance equivalent to 5-layer masks. They are thinner, lightweight, and more breathable, making them suitable for daily wear in various conditions. Non-Woven Fabric Melt-blown Filter