Jul. 29, 2024
Yes. Earplugs and other types of hearing protection devices are designed to bring noise levels down to a safer, more comfortable level. Most people without damaged hearing have no problem carrying on a conversation while wearing hearing protectors. Often, in noisy/loud environments, hearing protection wearers discover that these devices seem to &#;filter&#; out the background noise, actually making conversation and music clearer and easier to understand.
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What is an NRR?
NRR is an acronym that stands for Noise Reduction Rating. The government, through the Environmental Protection Agency, now requires that anti-noise hearing protection devices carry a label showing the NRR. This means that, if you wear a product with an NRR of 29, for example, in accordance with its directions, the noise entering your ears will be reduced by 29 decibels.
McKeon utilizes an ISO : quality management system certified by TUV USA. What is ISO : and how does it benefit me as a consumer/customer?
ISO is a standard based on a number of quality management principles including a strong customer focus, the motivation and implication of top management, the process approach and continual improvement. This quality assurance system has become accepted around the world. In fact, over 170 countries have adopted ISO as a national quality management standard. Using ISO helps ensure that customers get consistent, good-quality products and services. All of us here at McKeon Products are very proud to have maintained this achievement and high standard of quality since .
Do earmuffs offer better hearing protection than earplugs?
No. A well-designed earplug can offer hearing protection comparable to or exceeding that of earmuffs at most frequencies. More important is evaluating the individual devices and the users compliance with the proper use of the device.
Is it possible that my ears can get used to the noise that causes hearing loss?
No. If your ears seem to get used to the noise, it is only an effect caused by the deafening of your ears. Ears do not &#;toughen up&#; with repeated exposure to noise. Mack&#;s hearing protection devices can prevent this loss in quality of life from occurring.
I&#;ve already lost some or most of my hearing; why should I wear hearing protection?
The existence of full or partial hearing loss does not protect one from further hearing loss due to noise exposure. While hearing loss is permanent in nature and the use of hearing protection devices cannot restore hearing loss, they can help prevent further damage. The proper use of hearing protection devices can also help prevent temporary hearing losses, and allow existing temporary losses to recover before they become permanent.
Is there any hearing protection on the market that block out 100% of the noise?
The highest noise reduction rating (NRR) currently offered by an earplug is around 33 decibels. Decibel levels up to the earplug&#;s NRR rating will be blocked out entirely. Any noise over the earplug&#;s NRR may be heard. Another important factor to note is that the body absorbs sound; so short of encapsulating oneself in a sound proof chamber, it is seemingly impossible to block out all noise. Earplugs and other types of hearing protection devices are designed to lessen the harshness of the noise and bring it down to a safer, more tolerable level.
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How can I tell when a noise is potentially damaging to my hearing?
People differ in their sensitivity to noise. As a general rule, if you have to shout to communicate with a normally hearing person at a distance of about three feet, the noise is potentially harmful. Other signs to watch for are if the noise hurts your ears, causes your ears to ring, or causes temporary hearing loss for up to several hours after exposure. As the figure below illustrates, the start of unsafe levels begins at approximately 85 decibels. It is important to note that it is not only the level of noise, but also the duration of exposure, that determines whether it is a minor irritant, a definite disturbance, or a threat to your hearing.
Noise Reduction Rating (NRR) is a unit of measurement used to determine the effectiveness of hearing protection devices to decrease sound exposure within a given working environment. Classified by their potential to reduce noise in decibels (dB), a term used to categorize the power or density of sound, hearing protectors must be tested and approved by the American National Standards (ANSI) in accordance with the Occupational Safety & Health Administration (OSHA). The higher the NRR number associated with a hearing protector, the greater the potential for noise reduction.
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When hearing protection is worn, your level of exposure to noise is based on the NRR rating of the protection device being used. Keep in mind, however, that while the NRR is measured in decibels, the hearing protector being used does not reduce the surrounding decibel level by the exact number of decibels associated with that protector&#;s NRR. For example, if you are at a rock concert where the level of noise exposure is 100 dB and you are wearing earplugs with an NRR 33dB, your level of exposure would not be reduced to 67 dB. Instead, to determine the actual amount of decibel deduction applied (when decibels are measured dBA which is the most common), you take the NRR number (in dB), subtract seven, and then divide by two. Given the previous example, your noise reduction equation would look like the following: (33-7)/2 = 13. This means that if you are at a rock concert with a level of noise exposure at 100 dB and you are wearing a hearing protector with an NRR 33 dB, your new level of noise exposure is 87 dB. If you are wearing a product with an NRR of 27 it would deduct 10 decibels (27-7/2=10).
*To maximize noise reduction, hearing protectors must be worn properly.
When hearing protectors are worn in combination (i.e. earplugs AND earmuffs), rather than adding the two NRR numbers together, you simply add five more decibels of protection to the device with the higher NRR. For example, using 3M&#; E-A-R&#; Classic Earplugs (NRR 29) with 3M&#; Peltor&#; H7 Deluxe Earmuffs (NRR 27) would provide a Noise Reduction Rating of approximately 34 decibels.
While the amount of on-the-job noise exposure can be determined through various testing devices, excessive noise is generally defined as exposure to 85 or more decibels of sound over an 8 hour period.According to OSHA,hearing protection is required for all employees at this degree of exposure. This OSHA Action Level, however, will vary depending upon the decibel level of the surrounding environment. For example, if a worker is exposed to 100dB in a 2 hour period, he or she is also required to wear hearing protection. Each hearing protector product is required to meet the ANSI S3.19- testing of NRR levels.
In all cases where the sound levels exceed the values shown below, a continuing, effective hearing conservation program should be administered.
For a better grasp of industry standards, here are a few of the most common producers of noise levels that OSHA considersto be dangerous: lawnmowers, rock concerts, firearms, firecrackers, headset listening systems, motorcycles, tractors, power tools and industrial machinery. The use of hearing protection is strongly recommended during continued exposure to any of the previously listed environments, as all can deliver sounds in excess of 90 decibels.
150 dB = Rock Concerts at Peak
140 dB = Firearms, Air-Raid Siren, Jet Engine
130 dB = Jackhammer
120 dB = Jet Plane Take-off, Amplified Music at 4-6 ft., Car Stereo, Band Practice
110 dB = Machinery, Model Airplanes
100 dB = Snowmobile, Chain saw, Pneumatic Drill
90 dB = Lawnmower, Shop Tools, Truck Traffic, Subway
80 dB = Alarm Clock, Busy Street
70 dB = Vacuum Cleaner
60 dB = Conversation, Dishwasher
50 dB = Moderate Rainfall
40 dB = Quiet room
30 dB = Whisper, Quiet Library
Exposing yourself to high decibel environments can result in permanent damage to your hearing. In the event you find yourself in one of these environments, protect yourself with the proper hearing protection. If you have questions about any of the hearing protection products on our website, please feel free to call our customer service department. Our staff is dedicated to keeping your hearing safe and sound.
For more information, please visit Bluetooth Headphones for Mowing.
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