OEREBESKYTTER TIL DAEMPNING AF LYD OG TILHOERENDE FILTER

摘要

An ear protector for keeping down sound in a personalized form by causing the insertion part to match the concha part of the auricle with an appendix that can open out in the auditory canal, said ear protector having a relatively wide duct, the widened part of which receives a sound damping filter having a bore whereby the sound damping filter is arranged with satisfactory fit in the widened part of the duct, while an elongate object is placed in the bore of the filter so that a free passage in the bore remains possible with a maximum difference in distance between the outer side of the elongate object and the inner side of the bore of 0.33 mm at the narrowest passage.