Comfortable face masks with flexible aluminium nose clip for increased respiratory protection and optimum breathability. Stay cool butterfly vent valve provides breathing comfort and easy communication, whilst effectively removing heat build up. Superior microfibre construction protects against sub-micron particles, fine dusts, water / oil based liquid mists and biological agents e.g SARS, TB, and coronaviruses. Pocket-fit folded design ensures low storage volume and easy distribution. Outer flame retardent layer protects from welding sparks. CE level CAT III for PPE. Mask is secured on the face using two head straps.