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SKU: CD4558888
UPC: 033732009379

Mack's Way Dreamgirl Earplugs, Earplugs, Soft Foam - 7 pair

Noise reduction rating: 30 dB. No. 1 doctor recommended brand. Free keychain travel case. Provides ultimate comfort for women with small or sensitive ear canals. CE listed. Information required by the 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 100 dB (A). 2. The NRR is 30 decibels (dB). 3. The level of noise entering the ear is approximately equal to 70 dB (A). Tested according to ANSI S3.19-1974 Attenuation data. Canada A (L). NRR: 30 dB. Frequency Hz: 125; Grand Mean Attenuation, dB: 33.2; Standard Deviation, dB: 4.1; Real-Ear Protection, dB: 25.0. Frequency Hz: 250; Grand Mean Attenuation, dB: 36.6; Standard Deviation, dB: 5.2; Real-Ear Protection, dB: 26.2. Frequency Hz: 500; Grand Mean Attenuation, dB: 38.8; Standard Deviation, dB: 4.8; Real-Ear Protection, dB: 29.2. Frequency Hz: 1000; Grand Mean Attenuation, dB: 36.6; Standard Deviation, dB: 3.3; Real-Ear Protection, dB: 30.0. Frequency Hz: 2000; Grand Mean Attenuation, dB: 37.5; Standard Deviation, dB: 3.2; Real-Ear Protection, dB: 31.1. Frequency Hz: 3150; Grand Mean Attenuation, dB: 41.2; Standard Deviation, dB: 2.5; Real-Ear Protection, dB: 36.2. Frequency Hz: 4000; Grand Mean Attenuation, dB: 42.0; Standard Deviation, dB: 3.7; Real-Ear Protection, dB: 34.6. Frequency Hz: 6300; Grand Mean Attenuation, dB: 47.7; Standard Deviation, dB: 3.4; Real-Ear Protection, dB: 40.9. Frequency Hz: 8000; Grand Mean Attenuation, dB: 49.1; Standard Deviation, dB: 4.2; Real-Ear Protection, dB: 40.7. Noise reduction rating: 30 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). Made in Sweden.;

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