Sign up for an Award
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
There is no denying that air pollution is an extremely serious problem nowadays, especially in China, Because of this, people choose to wear masks. However, wearing a mask all day long will make you feel stuffy, and even do harm to your respiratory tract. To deal with this problem, we have designed a mask made of special material. When the level of harmful particle is above the safe range, the mask will change its color. The more serious air pollution is, the deeper the color of the mask will be. Thus, people can decide whether to wear masks or not according to the color of the mask.
Yudian Jin Qiyuan Jin Shuyi Wang Zhuoke Zheng