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The year of 2009, 'swine flu' was spread out all over the world. It showed how virus infection is easy and fast. One of the most frequent infection is from the taps in the public toilet. This new tap has a different way to turn it on. If you fold down the lever of the tap to turn it on, the lever will be same direction with the direction of water from the tap. It makes tap keep clean and safe from the dirty and infection while it is in use. Moreover, this manipulation is easier to understand how it works intuitively.
Dong Han Oh