Abstract: This invention concerns an ear protecting means and specially an ear-cap which protects the ear against dangerous noise. The object of the invention is to silence the dangerous noise while permitting talking communication between two persons. The invention consists of an ear-cap, which is placed against the exterior of an ear, and which includes a cushion which covers the ear and is of elastic and porous material, which transmits sound, the outside of said cushion being at least to its main part covered by a perforated disc, said disc defines a cavity which is closed beside the perforations, the thickness of said disc, the amount of perforations and their size and the volume of the cavity being adapted to the requested property of absorption of sound of a certain range of frequency.