How to protect our amazingly sensitive hearing from the hazard of noise at the workplace. Animation and live action reveal detail of the inner ear where excessive noise can cause permanent deafness. A guideline allows workers to assess dangerous noise levels where ear protection must be
How to protect our amazingly sensitive hearing from the hazard of noise at the workplace. Animation and live action reveal detail of the inner ear where excessive noise can cause permanent deafness. A guideline allows workers to assess dangerous noise levels where ear protection must be worn.