Textile thermoplastic material (10) from a large number of extruded filaments (19, 20) for producing mouth / nose masks with a large material surface and a large number of through holes with a small cross-section per unit area, characterized in that the textile material (10) at least one thread system integrated into a woven fabric / knitted fabric (G) is formed from a large number of filaments (10, 20) with a diameter of 800 nanometers.
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