Frequently Asked Questions about Noise and Hearing Loss

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1. What is noise?
   • Any disturbing, harmful, or unwanted sound.
   • The most common hazard in the workplace or during training.
   • The primary cause of hearing loss in the Army.
2. What are the different types of noise?
   • Noise can be continuous or steady. Examples include power tools, vehicles, and aircraft.
   • Noise can also be impulsive (banging). Examples include weapons fire and certain industrial machinery.
3. Will noise toughen your ears?
   • No! Noise destroys your ability to hear and to understand speech.
   • Over 10 percent of Army personnel develop significant hearing loss caused by noise when hearing protection is NOT worn.
4. When and where can noise impair your hearing?
   • During any weapon firing.
   • Noise can damage your hearing at work, at home, and during recreational activities.
   • Considered hazardous, if you have to raise your voice to be heard within 1 meter.
   • Noise in combination with some chemical exposures can increase hearing damage, for example, toluene, lead, carbon monoxide, etc.