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Elevator button is pressed thousand times a day. it has numerous virus and bacteria on it.
So we combine the UV-LED sterilization with the elevator button.
When pressing the button, the UV-LED sterilization will light up to disinfect,
this concept not only can show the floor has press and also decrease the chance of influence.
Chun-Wen Wang Chang-Yi Chen Ren-Hao Xu Ta-Chih Lin