Why users need accurate real-world estimates of hearing protector’s ratings

Abstract

Accurate values for hearing protectors’ attenuations are needed by occupational health professionals who deal with hearing conservation of employees exposed to noise levels in excess of 85 dBA. The problem becomes yet more important in large corporations with extensive use of those devices. Inaccurate NRR values may be the cause of increases in hearing losses, worker’s compensation claims, and liabilities. Overestimation of the NRR may result in a decrease in the use of engineering noise controls. Each of these areas will be highlighted and explained.