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Breath Carefully / Change the mask in time!

Breath Carefully
Breath Carefully

Breath Carefully make use of carbon dioxide produced by breathing to react with the reagent on the surface of the mask. As time goes by, a hand covering the mouth and nose appears on the mask, reminding people to change the mask in time and reminding others to pay attention to personal protection. This also greatly reduces the possibility of the virus spreading.


Dongguan University of Technology

Dongguan University of Technology
Gongguan City, China

Jiang Sijin,
Dongguan University of Technology

Dongguan University of Technology

Li Bolin,
Dongguan University of Technology