EP5 Sonic Defenders
Protection Against Two Types of Noise
Full-block EP5 Sonic Defenders Max provide protection against two types of
noise: continuous noise (example: loud roar of an engine) and impulse noise
(example: gunshot).
NOISE ATTENUATION DATA
NOISE REDUCTION RATING (NRR)
EP5 Sonic Defenders Max
125
250
500
1000
Test Frequencies (Hz)
32.8
33.3
35.4
32.8
Mean Attenuation (dB)
4.3
4.5
5.2
3.6
Standard Deviation (dB)
WARNING: Improper fit of this device will reduce its effectiveness in attenuating noise.
Follow instructions for proper fit. Failure to follow instructions could result in hearing loss
and/or injury. EP5 Sonic Defenders Max fit most people; however, no hearing protection
fits everyone. If proper fit cannot be achieved following instructions, discontinue use.
IMPULSE NOISE DATA
EP5 Impulse Noise Reduction
45
40
35
30
25
20
15
10
5
0
132
Average Peak Impulse Level
132 dB Overall Average PIL
150 dB Overall Average PIL
168 dB Overall Average PIL
®
2000
3150
4000
6300
8000
NRR
37.8
39.3
39.7
46.0
46.0
26
4.5
3.8
4.9
5.1
3.6
150
IMPULSE NOISE LEVEL (dB)
dB Reduction
36.2
42.4
42.9
ANSI S12.42-2010
Max
FITTING & TESTING
(when used as directed)
EP5 Sonic Defenders
Max
®
1. Starting with the EarLock
rotate the earplug forward while inserting the stem of the right EP5
(marked with an R on the retention ring) into the right ear canal deep
enough for the uppermost flange to seal. Fit the retention ring to the
natural contour of the concha bowl surrounding the ear canal to lock
the earplug in place.
2. Repeat process with left earplug (marked with an L on the retention ring)
for left ear.
3. Test by clapping. If no noticeable decrease in volume, reinsert and retest.
4. Slowly twist the earplug when removing to break the stem's seal.
WARNING: If the instructions above are not adhered to, the protection afforded
by EP5 Sonic Defenders Max will be severely impaired.
STEM ADJUSTMENT
168
EP5 Sonic Defenders
comfort. To adjust stem, with earplug removed from ear, pull out or push in
stem to lengthen or shorten for comfort.
retention ring oriented slightly backward,
®
Max feature adjustable stems to maximize fit and
®
HEARING PROTECTION
HEARING PROTECTION
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