Reusable face mask, non-medical, double layer, made of linen, first wash temperature: 30 degrees Celsius, subsequent washes temperature: 40 degrees Celsius, water sterilization at 100 degrees Celsius, ironing up to 200 degrees Celsius, OEKO-TEX certificate standard 100, flexible ear ropes for better comfort of use, made in Poland. Product Material : Linen. Dimensions: 15 cm unfolded.