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3M™ PELTOR™ Optime™ III
H540A
3M™ PELTOR™ Optime™ III
H540B
3M™ PELTOR™ Optime™ III
H540P3
3M™ PELTOR™ H31A
3M™ PELTOR™ H31P3
A:1 Frequency (Hz)
A:2 Mean attenuation (dB)
A:3 Standard deviation (dB)
A:4 APV (dB)
A:1 Frequency (Hz)
A:2 Mean attenuation (dB)
A:3 Standard deviation (dB)
A:4 APV (dB)
A:1 Frequency (Hz)
A:2 Mean attenuation (dB)
A:3 Standard deviation (dB)
A:4 APV (dB)
A:1 Frequency (Hz)
A:2 Mean attenuation (dB)
A:3 Standard deviation (dB)
A:4 APV (dB)
A:1 Frequency (Hz)
A:2 Mean attenuation (dB)
A:3 Standard deviation (dB)
A:4 APV (dB)
125
250
500
1000
17.4
24.7
34.7
41.4
2.1
2.6
2.0
2.1
15.3
22.1
32.7
39.3
125
250
500
1000
17.5
24.5
34.5
41.4
2.3
2.7
2.0
2.2
15.2
21.8
32.5
39.2
125
250
500
1000
17.1
24.5
34.8
40.2
2.3
2.8
2.2
2.0
14.8
21.7
32.6
38.2
125
250
500
1000
11.2
17.4
29.7
36.2
3.7
3.8
2.5
3.1
7.5
13.6
27.2
33.1
125
250
500
1000
11.8
19.2
28.6
34.3
3.2
3.8
2.7
1.8
8.6
15.4
25.9
32.5
A:5
2000
4000
8000
H
39.3
47.5
42.6
40
1.5
4.5
2.6
dB
37.8
43.0
40.0
A:5
2000
4000
8000
H
39.5
47.3
42.0
40
2.0
4.4
2.8
dB
37.5
42.9
39.2
A:5
2000
4000
8000
H
39.6
46.7
43.1
40
1.8
4.2
2.5
dB
37.8
42.5
40.6
A:5
2000
4000
8000
H
37.3
34.7
35.7
33
3.6
3.2
3.7
dB
33.7
31.5
32.0
A:5
2000
4000
8000
H
37.7
37.8
38.0
35
3.8
2.9
1.9
dB
33.9
34.9
36.1
A:5
A:5
SNR
L
M
32
23
35
dB
dB
dB
A:5
A:5
SNR
L
M
32
23
35
dB
dB
dB
A:5
A:5
SNR
L
M
32
22
34
dB
dB
dB
A:5
A:5
SNR
L
M
25
15
27
dB
dB
dB
A:5
A:5
SNR
L
M
26
16
28
dB
dB
dB
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