Amazon Price: Approximately 1480 yen / box Made in Japan, for peace of mind! Medical-grade three-layer construction Widely used in hospitals, medical institutions, etc. • SHIP HEALTHCARE • Part number SHIP0005 Made in Japan, with a commitment to all domestic production from machinery and raw materials. 99% Cut for pollen, viruses, and PM2.5 Designed to be gentle on the ears even after long hours of use, with gathers and three linear rubber bands that gently fit the ears. 1 box (30 sheets) Non-woven fabric, three-layer construction, white Material: Body/Filter: Polypropylene, Ear loops: Polyurethane/Polypropylene, Nose piece: Polyethylene Size (mm): Approximately 90 x 175 mm Particle Filtration Efficiency (PFE): 99% Bacterial Filtration Efficiency (BFE): 99% Viral Filtration Efficiency (VFE): 99%