Yamashin-Filter Corp. engages in the development, design, manufacture, and sale of filter products. It operates through the following segments: Construction Machinery Filter, Air Filter, and Health Care. The Construction Machinery Filter segment offers industrial filters, process filters, and filters for construction machinery. The Air Filter segment provides air filters. The Health Care segment handles the sale of masks and replacement inner sheets for masks. The company was founded on April 5, 1956 and is headquartered in Yokohama, Japan.