Auto engineering ear protection

Hearing protector fit-testing, also known as field attenuation estimation system (FAES), measures the degree of noise attenuation when using the hearing protection device by a particular worker in the enterprise.
Such measurements are necessary because noise attenuation is very variable among workers, and it can be close to zero for a significant proportion of them.
Individual anatomical differences and varying ability to correctly apply HPD do not allow predicting noise attenuation in workers based on laboratory measurements with satisfactory accuracy.
This is typically carried out using one of the available fit-testing hardware and software systems.
The effectiveness is typically measured as a personal attenuation rating (PAR) which is subtracted from the known noise exposure to estimate the total noise exposure a single person has when wearing the tested hearing protection device (HPD).
The Occupational Safety and Health Administration, National Hearing Conservation Association and National Institute for Occupational Safety and Health recommend it for all workers used HPD as a best practice, and describes existing testing methods and how to incorporate them in hearing conservation programs.

Hearing protector fit-testing, also known as field attenuation estimation system (FAES), measures the degree of noise attenuation when using the hearing protection device by a particular worker in the enterprise.
Such measurements are necessary because noise attenuation is very variable among workers, and it can be close to zero for a significant proportion of them.
Individual anatomical differences and varying ability to correctly apply HPD do not allow predicting noise attenuation in workers based on laboratory measurements with satisfactory accuracy.
This is typically carried out using one of the available fit-testing hardware and software systems.
The effectiveness is typically measured as a personal attenuation rating (PAR) which is subtracted from the known noise exposure to estimate the total noise exposure a single person has when wearing the tested hearing protection device (HPD).
The Occupational Safety and Health Administration, National Hearing Conservation Association and National Institute for Occupational Safety and Health recommend it for all workers used HPD as a best practice, and describes existing testing methods and how to incorporate them in hearing conservation programs.