Lightweight, breathable, comfortable. 3-Layers of Protection: Layer 1: Leak-proof outer layer. Layer 2: High-density filter layer. Layer 3: Direct skin contact layer. Comfort ear loops help reduce ear pain. Anti sensitive and anti foaming, triple protection. For non-medical use. Single use only. Inside Layer: Absorbs moisture. Outside Layer: Isolates dust and droplets. Middle Layer: Filters micro particles. Materials: Non-woven fabric, nose clip, comfort flex ear loop. Function: Suitable for general...