Great for swimming. Reduces noise, keeps ears dry, seals out water. Noise reduction rating: 21 decibles (when used as directed).
1. With clean hands, roll plug between fingers to soften. 2. Shape plugs into a ball. 3. Place plugs against ear openings and flatten firmly. Seal-Rite ear plugs are safe and effective, and can be re-used. However, if over a period of time there is any indication of degradation, such as cracks, brittleness or discoloration, discard them and replace with a new pair.
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.