Product Description: Easy insertion, ear canal shape Softer and more comfortable! Noise reduction rating NRR 29 Information required by EPA: When worn according to the hearing protection guidelines, the noise level transmitted to the human ear is approximately approximated by the difference between the A-weighted environmental noise level and the NRR. For example: 1) The environmental noise level measured at the ear is 92 dBA. (2) The NRR is 29 decibels (decibels). (3) The level of noise transmitted to the ear is approximately [92 decibels (A) - 29] 63 decibels (A). 29 decibel noise reduction rating (when used according to instructions) The noise reduction rating range of conventional hearing protectors is approximately 0 to 30 (the higher the number, the more effective).
How to use the product: 1. Slowly insert the plug into the wrinkle-free cylinder with clean hands. 2. While pressing the plug, insert the pointed end of the plug into the ear canal. Pulling the outer outward and upward will make it easier to fit the garment. 3. Use your fingertips to hold the plug in place until it starts to expand.
ingredients : drug information active ingredient purpose other ingredients
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