Nihon Kohden Corporation

Risa Osawa

Masayuki Inoue

Yuya Baba

Isao Matsubara

Raku Ishida

Masayuki Suzukawa

A mask size gauge for selecting a size of a mask in accordance with a distance in a height direction between an upper reference part in an upper portion of a face of a wearer, and a lower reference part in a lower portion, includes: a reference position indicating portion indicating that the reference position indicating portion is to be placed at a height position of the upper reference part on an outer lateral side of an eye of the wearer; and a size indicating portion that is located at a position which is closer to a middle of the face than the reference position indicating portion, and that indicates the size of the mask according to a height position of the lower reference part.

Growing community of inventors

Tokorozawa, Japan

Risa Osawa