A) STANDARD EN 352-1:2020
3M strongly recommends personal fit testing of hearing protectors. Research suggests that users may receive less noise
reduction than indicated by the attenuation label value(s) on the packaging due to variation in fit, fitting skill, and motivation
of the user. Refer to applicable regulations and guidance on how to adjust attenuation label value(s). In the absence of
applicable regulations, it is recommended that the attenuation label value(s) be reduced to better estimate typical
protection.
A:A Headband earmuffs with foam cushions
M2RX7A2-01
A:1 f (Hz)
A:5
125 250 500 1000 2000 4000 8000
H
M
L
SNR
A:2
MV (dB)
16.3 23.5 30.6 35.1 30.7 34.0 33.8 32.1 30.4 24.0 31.5
361g
A:3
SD (dB)
3.0
2.6
2.8
3.1
3.4
2.4
2.8
2.7
1.9
2.3
1.9
A:4
APV = MV - SD (dB)
13.3 20.9 27.8 32.0 27.3 31.6 31.0
29
29
22
30
A:6
: S, M, L
A) STANDARD EN352-3:2020
A:B Carrier attachment earmuffs with foam cushions
M2RX7P3E2-01
A:1 f (Hz)
A:5
125 250 500 1000 2000 4000 8000
H
M
L
SNR
A:2
MV (dB)
17.5 22.8 29.2 35.9 30.0 34.1 34.9 31.9 30.3 24.4 31.5
390g
A:3
SD (dB)
2.6
2.8
3.1
2.8
2.7
2.7
3.3
2.5
2.3
2.4
2.1
A:4
APV = MV - SD (dB)
14.9 20.0 26.1 33.1 27.3 31.4 31.6
29
28
22
29
B) STANDARD EN352-4:2020
B:A Criterion levels
B:1
H
114 dB(A)
M
108 dB(A)
L
99 dB(A)
C) COMPATIBLE CARRIER DEVICES EN 352-3
C:A Compatible Carrier devices
C:B Carrier attachment earmuffs with foam cushions
C:1 Manufacturer
C:2 Model
C:3 Attachment
C:4 Head Size
3M
G22 (Basic combination)
E
M, L
3M
SecureFit X5500/X5000
E
S, M, L
