Occupational Noise Exposure 29 CFR 191095 Presented by Larry Sailer Can You Hear Me Now HEARING SAFETY Purpose In todays program youll learn about your auditory system and how important it is to preserve your hearing through good safety practices ID: 613697
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A primer on ear care and hearing loss prevention
Occupational Noise Exposure 29 CFR 1910.95
Presented by Larry Sailer
Can You Hear Me Now?Slide2
HEARING SAFETY
Purpose:In today’s program you’ll learn about your auditory system and how important it is to preserve your hearing through good safety practices.Slide3
Objectives:
Know how the ear and our system of hearing are constructed and how it works.
Understand the potential affects of hearing damage.
Recognize the most common types of hearing damage.
Have a good knowledge of the common causes of hearing injury loss.
Know what good hearing safety practices are.Know how to select and use basic personal protective equipment.Slide4
PROTECT YOUR HEARING
You may be experiencing noise-induced hearing loss if you have ringing in your ears, headaches or irritability. If you have to turn your vehicle radio up after work and the next morning it’s much to loud, it means that your hearing level has declined temporarily . If this happens, the loss will eventually become permanent. TRUE / FALSESlide5
PROTECT YOUR HEARING
Your body will replace damaged hearing cells once you reduce noise exposure by wearing hearing protection. TRUE / FALSESlide6
Hearing Program
Action Level - “85 dBA”Hearing Protection Requirements “90 dBA”Standard Threshold ShiftSlide7
The Human EarSlide8
HEARING LOSS
Occurs in the inner earBounce BackPermanently damagedSlide9
WARNING SIGNS
Difficulty hearing “Ss” and “Ts”Difficulty separating speech from background noiseComplaints that your talking to loudlyTurning up volumesDifficulty hearing high-frequency soundsDifficulty hearing soft soundsRinging in the ears “tinnitus”Slide10
Permissible Noise Exposure
8 hours ………… 90 dBA6 hours ………… 92 dBA4 hours ………… 95 dBA3 hours ………… 97 dBA2 hours ………… 100 dBA1 1/2 hours …….. 102 dBA
1 hour ………….. 105 dBA1/2 hour ………… 110 dBA1/4 hour or less … 115 dBASlide11
ACCEPTABLE LEVELS
So what is considered an “acceptable noise exposure”70 – 85 dB rangeSlide12
Sound Level Survey
Sound Level MeterDosimeterSlide13
Noise Level Controls
Administrative ControlsEngineering ControlsPersonal Protective EquipmentSlide14
Personal Protective Equipment
Ear PlugsCanal CapsEar Muffs Slide15
SELECTING HEARING PROTECTION
Noise reduction rating.Comfort and fit.
Practicality in your work environment.
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Ear Plugs
(disposable)
If you do prefer earplugs for your protection, be sure to take these steps to get their full benefit:
In a noisy environment, keep your plugs in place.
Always follow the guidelines from the manufacture.
Keep the earplugs well maintained with some basic upkeep.
The only “care” required for disposable plugs are that you throw them away.
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Ear Plugs
(reusable)Inspect reusable plugs for torn flanges or other signs of wear.
Keep reusable plugs clean to avoid infection and to ensure a proper fit.
Ear plugs can be bothersome.
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Canal Caps
Canal caps, sometimes called pods, consist of two earplugs held in place by a rigid band.
Easy to remove when sounds decreaseOffer less protection than muffs or individual plugs.
Know your noise decibels and protection attenuation.
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Ear Muffs
Provide an acoustic seal Needs proper headband tensionNeeds visual inspectionSlide20
Hearing Test
The first test establishes a starting point, or “baseline”, of your hearing.
Annual AudiogramsRemember that the goal of OSHA’s noise exposure standard is to preserve your ability to hear human speech.Slide21
An Audiogram
If a 10-decibel reduction in your ability to hear is detected at the 2,000, 3,000 or 4,000 Hertz frequencies, you will be notified.
This kind of hearing change is known as a “Standard Threshold Shift”. It means that a sound has to be 10 decibels louder for you to hear it than was necessary in previous years.
If the test shows you have experienced this kind of hearing loss, you may be ask to take the test again.
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Hearing Health Tips
Noise can damage hearing
when it averages 90 decibels or more for an
eight-hour period.
Be particularly aware of:
High frequency sounds.
Loud sounds.
Duration you are exposed to harmful sound.
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Take Care
Your life would not be the same without the ability to hear.
Hearing is irreplaceable. Do everything you can to preserve it … before it’s to late.