EN14683 - The material used is 100% non woven textile fabric. The outer layer is blue and is threaded with an additional hydrophobic ingredient to prevent moisture going in. Middle layer is thicker material with higher structural density and surface tension. And the inner layer is softer material to the touch. The elastic is breathable and non damaging when worn for the recommended time (about 2h per mask before recycled). The mask are one time use only. Selling ONLY 0.10
