USER MANUAL
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3
Low Profile Custom
Communication Earplugs
Before Usage
The use of any hearing protective device will not guarantee adequate protection
for hearing loss for all persons under all circumstances. Consult your physician
frequently when being exposed to high noise levels. If exposure to high noise levels
occurs during employment activities, consult your employer regularly as well.
Example:
1. The environmental noise level as measured at the ear is 92 dB(A)
2. The NRR is 27 decibels (dB)
3. The level of noise entering the ear is approximately equal to 65 dB(A)
Always evaluate the adequacy of your protective gear before entering
hazardous environments.
The wearer should ensure that:
•
The earplugs are fitted and maintained in accordance with the manufacturer’s
instructions (improper fit of this device will reduce its effectiveness in
attenuating noise)
•
The earplugs have been inspected for serviceability
•
The earplugs are worn at all times in noisy surroundings
US Federal Law requires the following additional statements:
The level of noise entering a person’s ear, when hearing protector is worn as
directed, is closely approximated by the difference between the A-weighted
environmental noise level and the Noise Reduction Rating (NRR).
Caution:
For noise environments dominated by frequencies below 500 Hz the C-weighted
environmental noise level should be used.
Although hearing protectors can be recommended for protection against the harmful
effects of impulsive noise, the NRR is based on the attenuation of continuous noise
and may not be an accurate indicator of the protection attainable against impulsive
noise such as gunfire.
