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670 8-hour HAZWOPER Refresher for Cleanup Operations
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Ear Protection

Ear Plugs and Muffs

These protect against physiological damage and psychological disturbance but they can interfere with communication. Use of ear plugs should be carefully reviewed by a health and safety professional because chemical contaminants could be introduced into the ear.

Headphones

These include radio headsets with throat microphones and provide hearing protection and communications. They are desirable in emergency conditions.

Knowledge Check Choose the best answer for the question.

9-8. When working around atmospheric hazards, why is it important for a safety and health professional to carefully review the use of ear plugs?