Repels water and protects ear canals. Suitable for use with pressure-equalizing tubes. Seal-Rite Silaflex 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. Noise reduction rating 21 decibels. The range of noise reduction ratings for existing hearing protectors is approximately 0 to 30 (higher numbers denote greater effectiveness).

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