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The range of noise reduction ratings for existing hearing protectors is approximately 0 to 30 (higher numbers denote greater effectiveness).
Noise Reduction Rating: 31 Decibels (when used as directed)
Information required by EPA
The level of noise entering a person's ear, when hearing protector is worn as directed, is closely approximated by the difference between the A-weighted environmental noise level and the NRR.
Example:
1. The environmental noise level as measured at the ear is 92 dBA
2. The NRR is 31 decibels (dB).
3. The level of noise entering the ear is approximately equal to [92 dB(A) - 31] 61 dB(A)
With clean hands, roll the plug between your fingers into a tight cylinder. Pull the ear upwards and outwards. Insert the small end of the plug into the ear canal and hold it in place until it expands for a comfortable, snug fit.
Improper fitting will reduce effectiveness and could result in hearing loss or injury. Keep away from infants and small children. These earplugs are non-toxic, but may interfere with breathing if caught in the windpipe, which could lead to serious injury or death.
For noise environments dominated by frequencies below 500 Hz, the C-weighted environmental noise level should be used. Improper fit of this device will reduce its effectiveness in attenuating noise. Consult the enclosed instructions for proper fit. Although hearing protectors can be recommended for protection against the harmful effects of impulsive noise, the Noise Reduction Rating (NRR) is based on the attenuation of continuous noise and may not be an accurate indicator of the protection attainable against impulsive noise such as gunfire.
While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally be despatched with alternative packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and do not rely solely on the information provided by iHerb. This website has been machine translated as a courtesy to customers. iHerb does not represent or warrant that the translations are complete or error-free and iHerb is not responsible for any translation errors or omissions.
