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Happy Drum / water purifier

Happy Drum

This product is for kids who live in water-stressed
countries and it will solve the problem which these
poor kids suffer from the difficulty to find a water.
This drum will help kids to get water with a little strength.
It also can purify water when they pumped water.

University

changwon national university

changwon national university
Changwon-si, South Korea

Design

changwon national university

changwon national university
Changwon-si, South Korea

Hye-min Jang