We have focused on the hygiene of escalators and handrails located as essential facilities in modern society, as well as continuous interest in the safety and convenience facilities of facilities used by many people living in this era of rapid change and convenience. Escalators are urgently needed to protect against infection as they are widely used by countless people a day, with large changes in the risk of exposure from various bacteria and viruses.So we developed this product after studying the problem solving method using motif.Clearwin is the first Escalator and Moving Work Handrail Radioactive Ultraviolet Sterilization Device (patent number 10-1665676, 10-1839510, 10-1725195) developed by our company for the first time in Korea and the world. This is a device that generates and sterilizes UV rays on the escalator and moving work handrail used by many people, and we are proud of Clearwin's contribution to the human race so that everyone can use it safely against multi-use facilities in modern society by creating a safer and cleaner environment than the handrail of the escalator.