Non-woven filter - 13x15cm for cotton mask

Characteristics: Oeko Tex Class 1 Classification FDA approval for food contact BPA free and free from Phthalates Tested on: Bacterial Filtration Efficiency (BFE) EN 14683 -ANNEX B (Centexbel) Differential Pressure EN 14683 - ANNEX C (Centexbel) Domestic washing test 90 ° Processed in a BRCGS approved environment. These filters are intended for community and artisanal masks. (not medical / not PPE)