TOKYO, August 5, 2020-

Mitsui Chemicals, Inc. (Tokyo: 4183; President & CEO: HASHIMOTO Osamu) today announced its completion of the new, reusable 3D-printed mask that it has been developing^*1 with Professor HORI Katsutoshi of the Graduate School of Engineering at Nagoya University^*2 and Friend Microbe Inc. (President & CEO: NISHIDA Katsuhiko),^*3 a spinoff venture from Nagoya University.

The new mask, θ (Theta), consists of a reusable body and a disposable filter, the replaceable nonfabric^*4 for which is supplied by Mitsui Chemicals. After exhaustive consideration, the project partners succeeded in cutting the quantity of disposable nonwoven fabric in the mask filter to just 10 percent of that used conventionally – while also maintaining the same level of performance. The key to the breakthrough lies in having optimized the filter’s fit within the body.

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