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• HLSim - NIOSH Hearing Loss Simulator
  6/8/2022 - PC software
  Use this training and communication tool to demonstrate the effects of noise exposure on hearing.
• What Does a Hearing Loss Sound Like?
  9/19/2012 - Training materials
  Loud noise can permanently damage your hearing. It especially affects the sounds that help you understand speech. To hear what this sounds like, try these computer-generated samples.
• How Can I Test My Hearing Protection?
  12/3/2012 - Training materials, Unpublished documents and reports, Web software
  Use the sound player on this page to perform a quick test of whether you are getting at least a minimal 15 decibel (dB) level of protection.