FOTILE’s patented U shape tube sterilizes thoroughly and eliminates shadowing. It has been scientifically proven that if the distance of ultraviolet radiation is more than 40CM away from the point of radiation, the effect is greatly reduced. FOTILE’s U shape tube removes this problem. U shape tube can double ozone speeds, and kill bacteria and germs 100%. A negative ion sterilization system removes unpleasant smells.As long as 99 hours of the booking function, human design more prominent. LED time and function display experiences the forefront science.