Individual Field Fit Testing of Hearing Protection Devices (Mesure individuelle des performances de protections auditives). Nélisse, H., Gaudreau, M., Voix, J., Laville, F., & Hager, L. D. In First European Forum on Efficient Solutions for Managing Occupational Noise Risks - 3-5 July 2007 NOISEATWORK2007, of First european forum on effective solutions for managing occupational noise, pages pp. 1231--1240., July, 2007.
Individual Field Fit Testing of Hearing Protection Devices (Mesure individuelle des performances de protections auditives) [pdf]Paper  abstract   bibtex   
To objectively assess the real field performance of a new type of inflated custom earplugs, a measurement device and the corresponding predictive method have been developed. This objective measurement is performed a first time right after the earplug has been fitted (“Post-Curing Test”) and a second time after the earplug has been removed and replaced by the user himself (“Subject-Fit Test”). The evolution -over time- of those Subject-Fit values has been studied carefully and it was found that this method not only allows the prediction of field performance but is also an effective training mechanisms to assist in fitting and insertion of the earplug.

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