If employees are mobile or they are exposed to variable sound levels through the work day, what is the most appropriate device to use?

Using a dosimeter is the most appropriate choice in scenarios where employees are mobile or exposed to varying sound levels throughout their workday. A dosimeter is a device that measures an individual's noise exposure over time. It records the sound levels that a worker is exposed to during their shift, allowing for an accurate assessment of their overall exposure to noise.

This is particularly important in dynamic work environments where sound levels can fluctuate significantly. Unlike passive devices such as earplugs or sound barriers, a dosimeter provides continuous monitoring and can help ensure that employees do not exceed recommended exposure limits. It captures data across different tasks and locations, making it an essential tool for maintaining hearing safety in variable conditions.

Earplugs and noise filters can help reduce exposure to loud sounds but do not quantify noise exposure. Sound barriers may reduce the transmission of sound but are less practical in situations where mobility is necessary. Thus, a dosimeter provides the detailed information needed to implement effective hearing conservation strategies for employees frequently exposed to changing sound levels.