earthplus^TM Nano filter

This is a high-performance filter for masks jointly developed by two leading companies in Shinshu Japan. ‎The product is 3 layer structure, NafiaS® filter consisting of 0.0001 mm ultrafine fibers and earth plus ™ nonwoven fabric are superimposed on both sides. ‎It is a filter designed and dedicated for mask with filter pocket. ‎
‎※ Mask is not included in this product.‎