Eighty-five decibels is the maximum sound level that OSHA and the CDC have stated should be maintained in a workplace to ensure personnel safety. The Centers for Disease Control (CDC)/National Institute for Occupational Safety and Health (NIOSH) estimates that 22 million workers in the United States are exposed to hazardous noise. Noise Criterion - NC - were established in the U. to rate indoor noise like noise from air-conditioning equipment and similar. The main advantage with dB (A) - the A weighted noise or sound measurement - is Maximum acceptable Equivalent Sound Level - Leq - at some locations: ADD the current page to your short list! The short list is saved locally in your browser. Employee Health and Safety: Prolonged exposure to high noise levels can lead to hearing loss, stress, fatigue, and reduced concentration – all of which negatively affect employee productivity and well-being. Communication Difficulties: Noise can disrupt communication between workers, leading to. Hvac equipment for a building is one of the major sources of building interior noise, and its effect on the acoustical environment is important. Therefore, mechanical equipment should be selected, and equipment spaces. Controlling the level of excessive noise in your distribution center is crucial for creating a comfortable, productive workplace. A distribution center that is too loud can cause an array of issues for employees, including physical ailments such as hearing loss, accidents leading to injuries, and.