

3M™ Optime™ III Earmuffs have been developed for use in extremely high noise environments, particularly those dominated by high frequency sounds. Double casings technology helps minimise resonance effect.
Prod code: H540
Features: Liquid Filled Sealing Rings, Constant pressure, Low Profile, Easy Helmet Attachment, Double casing technology for high performance
Certificado Optime III (76 Kb)
Product Code: H540A-411-SV |
Weight (g) |
125 |
250 |
500 |
1000 |
2000 |
4000 |
8000 |
H (dB) |
M (dB) |
L (dB) |
SNR (dB) |
|
Mean Att |
285 |
17.4 |
24.7 |
34.7 |
41.4 |
39.3 |
47.5 |
42.6 |
40 |
32 |
23 |
35 |
Std Desv |
285 |
2.1 |
2.6 |
2 |
2.1 |
1.5 |
4.5 |
2.6 |
40 |
32 |
23 |
35 |
APV |
285 |
15.3 |
22.1 |
32.7 |
39.3 |
37.8 |
43 |
40 |
40 |
32 |
23 |
35 |
Product Code: H540B-412-SV |
Weight (g) |
125 |
250 |
500 |
1000 |
2000 |
4000 |
8000 |
H (dB) |
M (dB) |
L (dB) |
SNR (dB) |
|
Mean Att |
270 |
17.5 |
24.5 |
34.5 |
41.4 |
39.5 |
47.3 |
42 |
40 |
32 |
23 |
35 |
Std Desv |
270 |
2.3 |
2.7 |
2 |
2.2 |
2 |
4.4 |
2.8 |
40 |
32 |
23 |
35 |
APV |
270 |
15.2 |
21.8 |
32.5 |
39.2 |
37.5 |
42.9 |
39.2 |
40 |
32 |
23 |
35 |
Product Code: H540P3*-413-SV |
Weight (g) |
125 |
250 |
500 |
1000 |
2000 |
4000 |
8000 |
H (dB) |
M (dB) |
L (dB) |
SNR (dB) |
|
Mean Att |
310 |
17.1 |
24.5 |
34.8 |
40.2 |
39.6 |
46.7 |
43.1 |
40 |
32 |
22 |
34 |
Std Desv |
310 |
2.3 |
2.8 |
2.2 |
2 |
1.8 |
4.2 |
2.5 |
40 |
32 |
22 |
34 |
APV |
310 |
14.8 |
21.7 |
32.6 |
38.2 |
37.8 |
42.5 |
40.6 |
40 |
32 |
22 |
34 |
3M™ Optime™ III Earmuffs have been developed for use in extremely high noise environments, particularly those dominated by high frequency sounds. Double casings technology helps minimise resonance effect.
OPTIME III NUCA
3M™ Optime™ III Earmuffs have been developed for use in extremely high noise environments, particularly those dominated by high frequency sounds. Double casings technology helps minimise resonance effect.