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DANR THP
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DANR THPC
Overview
The Digital Active Noise Reduction (DANR) Triple Hearing Protector (THP) offers
superior performance as a double hearing protector with the addition of digital active
noise reduction, for a third layer of protection. The DANR Triple Hearing Protector
with Communications (THPC) represents Gentex Corporation’s top of the line product
for combined communications and hearing protection for excellent performance in
extreme noise fields.
Before Usage
Always evaluate the adequacy of your protective gear before entering hazardous
environments.
The wearer should ensure that:
•
The earmuffs and earplugs are fitted, adjusted, and maintained in accordance
with the manufacturer’s instructions. Improper fit of this device will reduce its
effectiveness in attenuating noise. Consult the included instructions for proper fit.
•
The earmuffs and earplugs have been inspected for serviceability.
•
The earmuffs and earplugs are worn at all times in noisy surroundings.
The use of any hearing protective device will not guarantee adequate protection
for hearing loss for all persons under all circumstances. Consult your physician or
audiologist frequently when being exposed to high noise levels. If exposure to high
noise levels occurs during employment activities, also consult your employer regularly.
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).
Example:
1. The environmental noise level as measured at the ear is 92 dB(A)
2. The NRR is 32 decibels (dB)
3. The level of noise entering the ear is approximately equal to 60 dB(A)