This device works to sterilize the tools by means of dry sterilization and steam sterilization.
It was operated with solar energy as an environmental friend and energy- saving apparatus.

This stored heat is transported of the rest of vicious tubes around the circle from inside, so that the heating of the deviceis completed without using electricity.

Theory of his work, the circular form is flattering from above, which it’s a lens reflecting sunlight because the lens is reversed on the vicious tubes surrounding the circle from abroad above this lens and this vicious pipes have the function of absorbing the heat of the sun and stored for a certain period of time.