Why is it important for Elevator's Epidemic Prevention? Early 2020, the global is attacked by Coronavirus and it becomes the biggest challenge now.  Within this battle of harmful to our health and even life, elevator’s sanitation become a hot topic to concern, beside of self- sanitation.  Nowadays, there are over 20 million of elevators operating in the world.  A huge uncountable number of occupants were transported every day.  Inside the narrow hermetic space, there is a very big risk of infection never less than inside airplanes & cruise.  Moreover, airplanes & cruise can park and stop service but elevators are hardly to stop even in a second.  It is because elevator is part of our live.  Therefore, the war of Elevator's Epidemic Prevention just started. How disease affects elevators? According to a Thailand video in YouTube, it shows how disease infecting from a courier staff pressing on the button of elevator and distributing to others one by one.  It seems too much over but true.  Firstly, elevator button must be contacted.  There is also an issue of shortened gaps in between occupants in the narrow space.  More or less, some disease may keep existing in the shaft and circulating with elevator fan.  Most of the elevator air is considered in hospitals and ignoring the air circulation from shaft.  Therefore, elevators have risk of contact-infection, droplet-infection & air-infection.  Devices of Epidemic Prevention Elevator Therefore, the 3 major methods of Elevator's Epidemic Prevention are (1) Not Contacting Disease (2) Direct Sterilization (3) Isolation of Disease Methods referring in the following:  1. Not Contacting Disease : Certain methods are able to control elevators without contact.     For example:     (1) How to choose floors without contacting buttons?  Just use “Non-Contact Button” straightly.  Put your finger about 1.5cm in front of the button.  When the button lights up, it means chosen.  Absolutely no contact occurs then. National Taichung Theater reacted fastest and replaced all of the buttons of elevators already, and allows people away from the risk of infection.     (2) Certainly, comment by speech is one of the good methods.  Similar to the smart-assistant of mobile phones, we developed “Voice Recognition”.  Just tell the elevator which floor to go and the elevator goes there.  For example, say “go to 3rd floor” and the elevator reply “3rd floor”.  Then this comment is confirmed and moving to 3rd floor.     (3) Adopting from gaming technology “Gesture Recognition”, commenting the elevator by gesture.  Lift up your hand in front of the Sensor-HUB and the upward-button will light up.  The e