hearing loss prevention1
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DID YOU KNOW...?Noise-induced hearing loss is the
number one occupational disability
It is generally painlessIt is progressive over time
It is permanent
IT IS PREVENTABLE!!!
THE
4 PS
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Steady-StateNoise Examples Rustling Leaves 20dB
Conversation 60dB
Automobile 70dB
Alarm Clock 80dB
Screaming Child 90dB
Pneumatic Drill 100dB Helicopter 110dB
Live Concert 130dB
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Loss of hearing sensitivity due to
hazardous noise exposures fromeither steady state noise orimpulse noise does occur even
before we can measure thechange!.
And it does carry negativeconsequences!!!
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5
BOTTOM LINE
If you are exposing yourself to
hazardous noise levelsunprotectedits not a matterofwhetheryou will develop
hearingloss butwhenyou willdevelop hearing lossthe oddsareVERY RARELYbeaten.
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HEARING PROTECTIONThe only thing standing between you
and a potential permanent hearing
loss!!!!!
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But I Cant Wear Hearing
Protection Because...
My ears will become infected
They hurt my earsI cant hear to do my jobI cant hear sounds needed to hunt,
etc., etc.Thinking short-term instead of long-
term
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Approved Types of HPDsEarplugsPre-formed
Hand-formed
Noise Muffs
Helmets
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NOISE REDUCTION
RATING (NRR)All hearing protection deviceshave a Noise Reduction Rating(NRR)
Field testing suggests that the
actual NRR is approximatelyhalf of what is listed on thepackage
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PRE-FORMED EARPLUGS Single Flange:
(NRR)=23dB
5 color-coded sizes: White (Extra Small)- 10% of
the population
Green (Small)- 25%
Orange (Medium)-30%
Blue (Large)- 40% Red (Extra Large)- 25%
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Characteristics Of A Good
Pre-formed Earplug FitVoices sound muffled
Vacuum effect
Comfortable
Single flange tab facing towardback of ear
Largest flange of triple flange isflush against ear canal opening
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Circumaural Noise MuffsNoise Reduction Rating
(NRR)=23dB
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Fitting TechniqueNoise muffs should seal around the
ear
Replace ear cushions when cracked orwornCertain types of muffs allow
placement of the headband on top ofthe head, behind the head, or underthe chin
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Care and Maintenance ofall HEARING PROTECTIVE
DEVICESKeep clean with mild soap and water
and dry before usingReplace when material
hardens/cracks or does not clean
Check for cracks on earphone seals,headband tension and replace asneeded
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COMBAT EARPLUGSInsert YELLOW plugs forweapons fire in dismountedmode.
Insert OLIVE DRAB plugs forsteady state noise in andaround aircraft, noisy vehiclesand watercraft, etc.
Keep filter holes free of earwax and other debris. Check proper insertion for slight tension by gently tugging
on plugs.
Ensure that plugs are cleaned with soap and water and drywhen returned to case.
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TO SUMMARIZE HEARING LOSS HAPPENS!
Noise induced hearing loss is 100%
preventable
Your hearing health starts withYOU while
at work or home
IfYOU dont protect itYOU will lose it