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3M Peltor Optime III Ear Defenders
3M Peltor Optime III Ear Defenders
£25.49
| Frequency (Hz) | 63 | 125 | 250 | 500 | 1000 | 2000 | 4000 | 8000 |
|---|---|---|---|---|---|---|---|---|
| Mf (dB) | 20.8 | 17.4 | 24.7 | 34.7 | 41.4 | 39.3 | 47.5 | 42.6 |
| sf (dB) | 3.1 | 2.1 | 2.6 | 2.0 | 2.1 | 1.5 | 4.5 | 2.6 |
| APVf (dB) | 17.7 | 15.3 |
22.1 | 32.7 | 39.3 | 37.8 | 43.0 | 40.0 |