These self-filtering folding FFP2 NR masks are manufactured in compliance with EN 149-2001+A1:2009 standard. The masks have been also classified as PPE of Category III. These disposable face masks protect against solid and fluid particles and have a filtration efficiency of up to 92%. They have elastic ear loops that can be perfectly adapted to the contour of your face without pressing on the skin thanks to the adjustable head strap. They are more comfortable and safe.