Hearing Conservation
What does NIHL stand for?
Noise Induced Hearing Loss
What measurement is used for sound?
Decibels (dB)
What is the term we use for unwanted sound?
Noise
True or False. Noise Induced Hearing Loss (NIHL) can happen to anyone at any age.
True
True or False. You will notice the damage from noise exposure immediately.
False. Since the damage from noise exposure is gradual, it might not be noticed at first.
List the category for the two most common types of hearing protectors.
Earmuffs
Earplugs
Hearing loss that results in damage caused by noise from excessively loud sounds that cannot be medically corrected is known as?
Noise Induced Hearing Loss (NIHL)
Downtime
What is the absolute least amount of time you should allow your ears to rest after being exposed to loud sounds?
How long is the ideal rest period that you should give your ears after you've been exposed to loud activities (such as a concert)?
What decibel number is considered the last "safe" listening level?
85 dB
How long can you safely listen to sound that is between 100-115 decibels before it can start to cause NIHL?
15 minutes
______________ hearing protection is the one that most people are familiar with. These ear products stop sound from getting through to the eardrum.
Passive
At 85 dB, the maximum recommended exposure time to noise is _____ hours.
8 hours
________ hearing protection is the kind that typically uses electric components to amplify or suppress sounds in the immediate environment. They allow non-harmful sounds to be heard while blocking out harmful sounds.
Active
The safe listening level is cut in half for every ___dB rise in noise levels over 85 dB.
3 dB
True or False. Passive hearing protection makes it hard to hear commands or other people talking to you.
True
What is it called when you have a loud ringing, roaring, or buzzing in your ear due to NIHL?
Tinnitus
True or False. Passive hearing protection allows you to have a conversation, hear commands and the surrounding environment and exclude dangerous noises.
False. The correct answer is Active hearing protection.
Name two advantages and two disadvantages of wearing earmuffs.
Advantages:
More protection then earplugs, Fit most people, Less time to put on, Easy to monitor, Not easily lost, Can be worn with ear infections, Reusable and longer lasting
Disadvantages:
Less portable and heavier than earplugs, Requires a place for storage, Uncomfortable when the weather is hot, Hard to use with glasses
NIHL typically shows up on an Audiogram as a notch at what frequency?
4000 Hertz
What two word term means to stop significant, permanent hearing loss resulting from noises that are too loud?
Hearing Conservationi
Name two advantages and two disadvantages of wearing earplugs.
Advantages:
Small and easily carried, Can be easily used with glasses, More comfortable in hot weather
Disadvantages:
Can require more time to fit them in the ear, Hard to insert and remove, May irritate the ear canal, Easily misplaced, More difficult to monitor usage
Name three ways to limit your exposure to loud sounds.
Lower the volume
Limit listening time
Move away from the noise
Use ear protection/noise cancelling headphones
List three different examples of types of earplugs.
Formable foam earplugs
Pre-molded silicone, wax, rubber or plastic earplugs
Canal cap earplugs
Custom molded earplugs