Abstract: The invention relates to a protective structure for machines or apparatus, in particular an apparatus for the handling of containers, which has a barrier to limit noise emissions to the external environment. In particular, the invention relates to a protective structure 1 for an apparatus for the handling of containers comprising a frame 2, panels 9 for insulating it from the external environment, fastened to said frame 2 by fastening means 10 which create a gap between said frame 2 and said panels 9, and gasket means arranged in said gap, characterized in that said gasket means comprise gasket walls 11 which can be expanded by blowing in fluids under pressure.