- Noise Reduction Rating NRR 30
- Smooth, Tapered Foam for A Soft, Comfortable Fit
- Tapered for Comfortable Fit
- Not Made with Natural Rubber Latex
Noise Reduction Rating: 30 decibels (when used as directed).
The range of noise reduction ratings for existing Hearing protectors is approximately 0 to 30 (higher numbers denote greater effectiveness)
Information required by EPA: The level of noise entering a persons ear, when a hearing protector is worn as directed, is closely approximated by the difference between the A-weighted environmental noise level and the NRR.
Example:
- The environmental noise level as measured at the ear is 92 dBA.
- The NRR is 30 decibels (dB).
- The level of noise entering the ear is approximately equal to [92 dB(A) - 30] 62 dB(A).