Made Of 5 Layers Of Non-Woven Fabric, Fusion Blown, Moisture Resistant, Non-Toxic, Non-Irritant, Elastics & Adaptable Nose Clip | High Quality Elastic Ear Cups Make It Comfortable To Wear For A Long Time. | Breathable Non-Woven Fabric Prevents Dust, Pollen, Etc. Box Of 10 Masks - 2 Packs Of 5 Masks Our Ffp2 Masks Meet The En149 Standard Which Requires A Bacterial Filtration Efficiency. The Total Leak Rate Must Be Less Than Or Equal To 11%