If noise can't be reduced to safe levels by getting a quieter machine or by using sound absorbing materials around it, what can be done?

Using hearing protection is an effective method to safeguard individuals from excessive noise exposure when it cannot be reduced through quieter machinery or sound absorption materials. This approach is essential, particularly in environments where noise levels are consistently high and pose a risk to hearing health.

Hearing protection devices, such as earplugs or earmuffs, are designed to reduce the amount of sound that reaches the inner ear, thus preventing hearing loss and related issues. They are especially useful in scenarios where engineering controls or administrative measures may not be feasible to implement immediately. By providing a barrier to sound, these devices allow individuals to work safely in noisy environments until other long-term solutions can be considered.

In contrast, other approaches like re-engineering the equipment, restricting access to the machine, or moving the equipment might not be immediately practical or viable solutions. Each of these alternatives comes with its own set of challenges and may require significant time, resources, or changes in workflow.