How does the noise reduction rating (NRR) of hearing protection devices influence their ability to protect against hearing damage, and what NRR should I look for in my situation?

The noise reduction rating (NRR) of hearing protection devices indicates their ability to reduce noise levels and protect against hearing damage. The NRR is a numerical value that represents the device’s noise reduction capabilities in decibels (dB). A higher NRR generally implies better protection. To determine the appropriate NRR for your situation, you should consider the noise levels in your environment. Subtracting the NRR from the noise level provides an estimate of the noise exposure you’ll experience. Choose hearing protection with an NRR that reduces the noise to a safe level, typically below 85 dB, for your specific circumstances.