ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,482, issued on Jan. 20.

"Diffusion terminal of clean air provided with double emission, and corresponding air exchange system" was invented by Andrea Cagni (Turin, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A diffusion terminal of clean air includes an outer body, which can be connected to a respective supply channel of clean air. The outer body has an outlet mouth for supplying clean air towards an inhalation area of a person. A first conical element is at least partially hollow arranged inside the outer body, so that an axis of the first conical element is substantially coincident with a main axis of the body. The first conical element h...