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We have been caring big part of our home using humidifier, air cleaner and vacuum cleaner. But, we also want to care the small parts thoroughly as well - such as vegetable, sink and wet cloth which we have no way to know its hygienic conditions. thRee can separate into three parts which are specialized at different sections. This will satisfy consumers needs.
Kyunghee University
Kyeonggido Yongin, South Korea
Kyunghee University
seoul, South Korea