3M Peltor Optime I safety headphones with spring-loaded steel headband
| Features: • Ultra-narrow profile lightweight headphones (180g) – better compatibility with other personal devices • Wide and deep cups provide more space for the ears • Soft and wide sealing O-rings are filled with a unique foam and liquid mixture, which ensures optimal fit and low pressure • Average noise reduction despite its lightness and narrow profile • Made of steel, the headband is extremely durable and maintains the constant shape of the headphones. • The design of the headphones allows them to fit perfectly around the head and ears, providing excellent communication capabilities. Standard: EN 352-1, CE mark |
| H | M | L | SNR |
| 32 | 25 | 15 | 27 |
| Frequency (Hz) | 63 | 125 | 250 | 500 | 1000 | 2000 | 4000 | 8000 |
| Average attenuation (dB) | 14,4 | 11,6 | 18,7 | 27,5 | 32,9 | 33,6 | 36,1 | 35,8 |
| Standard deviation (dB) | 4,5 | 4,3 | 3,6 | 2,5 | 2,7 | 3,4 | 3,0 | 3,8 |
| Nominal protection (dB) | 9,9 | 7,3 | 15,1 | 25,0 | 30,1 | 30,2 | 33,2 | 32,0 |