Polyester reusable mask with 4-layer filter, 2 outer and 2 inner non-woven. Nasal adjustment and 3 frontal pleats included, ensuring a better fit to the area to be protected. Comfortable and breathable mask, tested by IFTH (Institut Français du Textile et de l'Habillement), with a 90% level (CWA 17553) that guarantees a level of particle retention of 97% and a level of breathability up to 23l/min, over 50 washing cycles. Suitable for the general population, it is not a medical device. See the information leaflet for recommendations on use, care and cleaning. Customisable mask. Supplied in polybag. Products with printing should be washed at a maximum temperature of 30ºC. Do not iron printing. Mask: 175 x 100 mm | Tubular rubber bands: 180 mm