What is the Personal Attenuation Rating (PAR)?
Personal Attenuation Rating (PAR) is a measure of hearing protector attenuation for each worker as determined by Individual Fit Testing. Individual Fit Testing is conducted for each employee using his/her own hearing protector as normally worn. OSHA, NIOSH and many professional organizations have long recognized that the laboratory-derived NRR is not a good predictor of actual hearing protector performance in the real world. Individual Fit Testing is now a recommended best practice for hearing conservation programs.
For more information, see our SoundBytes article.
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- What is NRR or Noise Reduction Rating?
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