N95 masks, small size, 50 pieces. Individually wrapped. ● NIOSH (National Institute for Occupational Safety and Health) certified N95 mask. ● Achieves both blocking and breathability. ● Fits perfectly to the shape of the face. ● Wide filter area provides excellent ventilation and makes breathing easier. ● High-quality filter with 99% filtration efficiency ・ Particulate Filtration Efficiency (PFE): 99% ・ Bacterial Filtration Efficiency (BFE): 99% ・ Blood Penetration Resistance: 80mmHg ・ Flammability: Class 1 ● Foldable design allows for space-saving storage. ● Safe and reliable, made in Japan. Will be shipped in the box. Thank you very much.