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Medical surgical mask / Medical instruments

Medical surgical mask

The purpose of the design is to provide a healthier way for people to use protective facial masks so as to effectively prevent virus spreading.As for the epidemic prevention and control, it is very significant for people to wear protective facial masks appropriately. Research shows that a disposable surgical mask should be changed into a new one after being used for four hours because of the decline of its filtering function. With a layer of chromogenic material in a facial mask, people can be reminded to change their mask by its color fading after they have breathed enough water vapor.

University

The City Vocational College

The City Vocational College
Nanjing, China

Weihong Qiao,
The City Vocational College of Jiangsu

Chaonan Chen,
The City Vocational College of Jiangsu