The Peltor Optime II H520B helmet with adjustable headband is ideal for hearing protection in noisy locations such as industrial environments, construction, airports, workshops or metalworking. It is ideal for low and mid frequencies. It is very comfortable thanks to its cushions and easy to store and transport. These are its technical characteristics:
| Frequency in Hz |
125 |
250 |
500 |
1000 |
2000 |
4000 |
8000 |
| Average attenuation dB |
14,7 |
20,4 |
32,3 |
39,6 |
36,2 |
35,4 |
40,2 |
| Mean deviation dB |
1,8 |
20,6 |
2,5 |
2,2 |
2,4 |
4,2 |
2,4 |
| Assumed protection dB |
13,0 |
17,7 |
30,2 |
37,2 |
34,0 |
30,4 |
37,9 |