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Thermochromic toilet / Toilet seat

Thermochromic toilet

This innovative toilet seat helps cultivate a healthy bowel habit and prevent hemorrhoids.It changes its color with body temperature and becomes redder if a person stays longer on it.The material of our seat is a mixture of plasolthermochromic pigments and original plastics. Each pigment has its own temperature range where it becomes transparent. If the temperature rises, pigments become transparent in order, and leave other pigments which have higher temperature range.These colors are intuitive enough to inform you about the situation. Green and yellow are okay, but red means ‘you need to shorten your time spent on the toilet seat’.


Yonsei University

Yonsei University
Seoul, South Korea


Yonsei University

Yonsei University
Seoul, South Korea

Hohyun Kim, Seokyung Chung, Heejae Ahn