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Warning respirator / Respirator

Warning respirator
Warning respirator

This is a new type of respirator that can change its color when the user in the contaminated air.
This new respirator is made of a special mixing material which can change into different colors according to the type of the poisonous gas such as hydrogen sulfide, sulfur dioxide and carbon dioxide. When the user of this respirator is in the polluted air, the color will be changing to remind the user of leaving this area right now. The longer the user stays in the polluted air, the deeper the color will be. And the respirator keeps its natural color when the air is harmless to the people.

University

college of software technology

college of software technology
Ningbo, China

University

college of software technology

college of software technology
Ningbo, China

Design

college of software technology

college of software technology
Ningbo, China

CaoYi