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Time-effective Mask / medical instruments

Time-effective Mask
Time-effective Mask

This design of mask can guide the users to change the mask regularly, to prevent the protective effect of the mask from falling due to wearing it for too long, and to effectively prevent the second use of the mask.The rope inside the mask is red. With the increase of wearing time, the pulling force will cause the water-absorbing strip to become thinner and longer, making the colored rope move to the outside of the mask. With the increase of humidity, the paper rope will break due to water absorption saturation, making the mask loose and unwearable.


Beijing Institute of Technology

Beijing Institute of Technology
Beijing, China

Yuanmo LI,
Beijing Institute of Technology

Haixin SUN,
Beijing Institute of Technology

Miao LI,
Beijing Institute of Technology

Sihan YU,
Beijing Institute of Technology