Abstract: ANTI-POLLUTION POROUS FLEX PIPE, refers to ananti-pollution porous flex pipe with its walls essentially comprised by tapes formed by interlaced textile fibers, to which activated charcoal is added (6), in agglomerate, powder or granulated form, and the textile tapes being wound over it and glued among it in the helical direction, forming an air conducting acoustic flexible helical pipe which is a part of the combustion engines intake system used by the automotive industry, adding the activated charcoal (6) in the walls or in the pipe's external (1) or internal (3) lining.

Abstract: Flexible cylindrical tube for conducting air or other gases, of use in particular in the automobile industry where its purpose is to, among other things, conduct air to internal combustion engines, and comprising at least one flexible cylindrical covering (1, 3) made of a material considered to be soft and noise-absorbent, characterized by a support-tape (2) provided with apertures (2A ) against which the covering (1, 3) is placed.