Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Efficient Toilet / toilet

Efficient Toilet

When using public toilets,how do you know if there are vacancies?
And how do you choose the right room to wait for?The efficient toilet solves these problems for users. This design provides apparent signals for people who are waiting by combining the connection and disconnection of the circuitry with the use
conditions of the toilet. When there is a vacany,the signal line is straight. When there is a vacany,the line is cut and takes on a 45
degree angle. When there is a long time to wait, the line will take
on a 90 degree angle. The doorknob and the signal line make up a coordinated control system. The line signal also works.


Jiangnan University

Jiangnan University
Wuxi, China


Jiangnan University

Jiangnan University
Wuxi, China

Yue Liu Tinghua Lu