A door handle that not only safe to touch, but also disinfects your hand when you grab it.
It consists of 3 items: sanitizer(alcohol type, e.g. isopropyl) bottle holder, handle cover and rope, winded from one side on the handle and from the other side submerged in alcohol. The rope is always stays soaked by alcohol due to capillary action
The author hasn't provided the model origin yet.