A mechanic finds a carpenter using a powder-activated tool to anchor wall track. What precaution should the mechanic take?

Wearing hearing protection is essential when working with a powder-activated tool, as these tools can produce substantial noise levels that can potentially damage hearing. The explosive nature of the powder used in such devices generates loud sounds during operation, which can exceed recommended noise exposure limits.

This makes hearing protection crucial to prevent temporary or permanent hearing loss. While other safety precautions, such as wearing eye protection, gloves, or a safety helmet, may also be relevant depending on additional factors present in the environment, the primary concern when someone is using a powder-activated tool is the high noise levels associated with its operation.