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The 3M E-A-R TaperFit Uncorded Earplugs are a soft polyurethane foam earplug with a tapered shape for user comfort. They come in a poly bag to keep them clean prior to use.
| FREQ (HZ) | MEAN VALUE dB | STD. DEVIATION dB |
|---|---|---|
| 125 | 36.4 | 3.6 |
| 250 | 39.1 | 2.9 |
| 500 | 41.7 | 3.4 |
| 1000 | 40.7 | 3.5 |
| 2000 | 38.1 | 2.8 |
| 3150 | 44.5 | 2 |
| 4000 | 45.9 | 2.3 |
| 6300 | 48.4 | 3.2 |
| 8000 | 48.1 | 3.7 |
