CVS - Tapones protectores de espuma para oídos

Noise Reduction Rating: 29 decibels. Comfort contour. Latex free. Soft, comfortable foam earplugs. Clean, safe protection. For sleep, study, work & sports. Compare to Flents Quiet! Please (This product is not manufactured or distributed by Flents Products Co., owner of the registered trademark Quiet! Please.). Noise Reduction Rating: 29 decibels (when used as directed). The range of noise reduction ratings for existing hearing protectors is approximately 0 to 30. (High numbers denote greater effectiveness.) Label required by US EPA Regulation 40CFR Part 211 Subpart B. Sound Attenuation Data: Frequency: Frequency in Hz - 125. Mean: Attenuation in dB - 32.7. Standard: 4.0. Frequency: Frequency in Hz - 250. Mean: Attenuation in dB - 34.7. Standard: 4.3. Frequency: Frequency in Hz - 500. Mean: Attenuation in dB - 36.6. Standard: 4.3. Frequency: Frequency in Hz - 1000. Mean: Attenuation in dB - 38.1. Standard: 3.0. Frequency: Frequency in Hz - 2000. Mean: Attenuation in dB - 37.3. Standard: 2.5. Frequency: Frequency in Hz - 3150. Mean: Attenuation in dB - 40.1. Standard: 3.1. Frequency: Frequency in Hz - 4000. Mean: Attenuation in dB - 40.0. Standard: 3.3. Frequency: Frequency in Hz - 6300. Mean: Attenuation in dB - 44.0. Standard: 5.2. Frequency: Frequency in Hz - 8000. Mean: Attenuation in dB - 45.7. Standard: 4.9. About This Product: A decibel (dB) is a unit of measurement to quantify sound. Someone whispering, for example, registers a decibel level between 15-25 db, while someone speaking is approximately 65-70 db. The United States Environmental Protection Agency requires products such as this one to have a Noise Reduction Rating (NRR): that is, a number estimating noise reduction at the ear when the product is used as directed, as determined by standardized testing. The rating spectrum is from zero (0) to 30, with higher numbers denoting greater noise reduction at the ear. this product has an NRR rating of 29. www.cvs.com. CVS quality guarantee. Please recycle. Made in Korea.

For Effective & Comfortable Use: 1. With clean hands, roll plug bag & forth between fingers to form a tight cylinder. 2. Immediately insert compressed plug into ear canal. Hold plug in place until it expands to give a snug, comfortable fit.