Pure tone audiometry with and without specific ear protectors

SummaryThe authors evaluated pure tone audiometry with and without specific ear protectors.AimThe purpose of this case control study was to measure the level of sound attenuation by earplugs.Materials and MethodsThe evaluation included sixty ears of 30 subjects of both sexes, aged between 20 and 58 years, of various professional activities, with normal hearing thresholds, and following ten hours of auditory rest. The statistical results of pure tone audiometry at 500 to 4000 Hertz with and without specific ear protectors were analyzed.ResultsThese results were compared with those provided by the ear protector manufacturer.ConclusionThe results show that the rate of sound reduction was similar to the manufacturer's specifications.