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Variable color mask / student

Variable color mask

People often forget the time when they wear masks. When they wear masks for a long time, it is easy to breed bacteria and form secondary infection. In this design, potassium permanganate powder is added to the upper part of the traditional mask, and the water vapor breathing for a long time will react with potassium permanganate powder, showing purplish red. The main purpose of this design is to remind people to change masks in time to avoid secondary infection.

University

Zhengzhou University of light indus

Zhengzhou University of light indus
Zhengzhou City, China

chunlei chen,
Zhengzhou University of Light Industry

mengdishi,
Zhengzhou University of Light Industry

haili yuan,
Zhengzhou University of Light Industry