Disposable Face Mask Medical 98% BFE CE & FDA 3 Ply Elastic Ear Loop Face Mask 98% Bacterial Filtration Efficiency 2 Layers of PP Non-Woven Fabric 1 Layer of SMS antibacterial filter fabric Soft elastic and bendable nose bridge 50 Pack (10pcs individual bags) Single Use disposable Made in Vietnam This is not proven to reduce the transmission of disease. The mask should be disposed after each use. Keep the blue side outside and the nose clip on the upper side.