Which set of values defines the continuous noise range for single hearing protection?

• A. 85-104 dB continuous
• B. 140-165 dB impact
• C. 90-100 dB continuous
• D. 0-50 dB

Answer: (A)

Understanding how much continuous noise a single hearing protection device can effectively handle is the key. A single HPD can typically bring down a loud but steady noise level into a safer range for many tasks, roughly from the mid-80s up to about 104 dB. That means continuous noise within this window can be managed with one protective device if the fit is decent and the exposure duration isn’t extreme. Below about 85 dB, protection isn’t usually needed, and above roughly 104 dB, additional protection (like double protection) or other controls are typically required. The other options describe impulse or peak noises or ranges that don’t align with how single protection is generally applied.