Hazard Hearing Environments-Metal Fabrication

November 26, 2019

When mobile workers in lean shops move into and out of noise-hazardous areas, they can’t simply wear maximum protection at all times to block out every hazardous noise.

Here are some tips on selecting the right protector for any situation that can solve these problems.
Despite the ongoing industry-wide attention and investment in hearing conservation programs and engineering solutions, extreme noise levels and the potential for noise-induced hearing loss (NIHL) are still being encountered by workers throughout the metal fabrication industry. A properly fitted foam earplug provides a simple solution for the highest level of protection, recommended where exposure to potentially damaging levels of noise may be encountered. A wide variety of foam earplug shapes and sizes are offered, however foam ear plugs are not always the safest and most reliable protection for your ears.  Over the past few years, we are seeing a shift in Occupational Health and Safety persuading workers and managers to adopt custom, personal or moulded hearing protection. To learn some tips for achieving the best possible fit of hearing protection see below.

If dirty or gloved hands make use of a roll-down foam earplug difficult, consider a hearing protector with a stem. Even some foam earplugs and custom ear plugs include a stem for insertion like the dB Blocker Grip. The new dB Blocker Grip innovative design targets industries where dirt, grime and larger hands may be an issue.

The new Grip’s non-slip integrated handle is formed in a single piece of dB Blocker silicone in order to deliver hassle-free ease of insertion screen-shot-2016-09-27-at-12-20-50-pmand removal. Learn more.  

Multiple-use hearing protection often make the best option for intermittent noise levels, or for situations where levels may require raised voices for clear communication. These protectors can be quickly and easily removed or replaced as hazardous noise levels increase or subside. Multiple-use models are usually available in a variety of shapes and sizes to match the variations in users’ ear canals.

Ear muffs can be used either alone or with insertable hearing protection of some type. In general, the larger the earcup of the muff, the greater the attenuation or lessening of the noise. The rule of thumb for dual protection is to add 5 dB to the attenuation of the hearing protection for the use of an earmuff in combination. Generally the earplug or ear mold is the more variable fit.

Where both hearing protection and clear communications are required, modern PPE technology offers two types of solutions. (Both beat the “old school” answer to this situation, wherein workers in a noisy environment just take out their earplugs whenever someone speaks to them. For obvious reasons, this is not a recommended solution. That is why more workers are wearing dB Blockers as its hearing protection you can hear through. The proprietary frequency tuned filter allows interpersonal communication without removal. People can communicate in noise better while wearing their dB Blockers™ hearing protectors than if they were to remove them. Your hearing loss prevention program will not interfere with productivity. Learn more. 

productive workers

For the most technologically sophisticated solution, consider a communication system. This advanced device incorporates hearing protection, active noise reduction, and voice signal amplification. It’s recommended where clear communication is critical, as in workplaces where misunderstanding a verbal communication could cause an injury or even a fatality.

In lean manufacturing, as more workers become mobile and move between or into and out of noise-hazardous areas, challenges with mobile workers present unknown exposure levels, uncertain availability of protection equipment, and difficulty in monitoring PPE use. PPE should be readily available at each worksite, everywhere that it is needed. Workers should know when and how to use their hearing protection. A good rule of thumb is that if you have to shout to speak to someone approximately an arm’s length away, you should both have hearing protection on.

The metalworking industry presents a stunning variety of hearing hazards, as punching, cutting, casting, stamping and forming machinery, equipment and tools of all varieties assault the ears with all sorts of constant, intermittent, and impact noise. In such a dynamic environment, with people and machines constantly on the move, it’s critical that workers maintain situational awareness to operate safely. However, they can’t simply wear maximum protection at all times to block out every hazardous noise. Such overprotection could too easily make them miss important voice communications or warning signals.

Nor can they periodically remove their hearing protectors to monitor machines or speak with colleagues. That’s a sure way to risk permanent, noise-induced hearing loss.

HEARING CONSERVATION
Whether a formal hearing conservation program is required or not, the goal is to have a safe work environment at all work locations. Workers should go home with the same level of health and wellness the brought to work. Using the right hearing protection maintains a worker’s hearing health, but also allows that worker to safely complete his or her job.

Regulations require that employers furnish adequate hearing protection on the job. Finding the right hearing safeguards for the myriad needs at worksites across the metalworking industry not only provides compliance: it ensures that workers remain protected and productive. Learn more about improving productivity in the metal machine & fabrication industry or download the PDF – Click here to download a brochure (Adobe PDF)

SOURCE

Hearing Protection

Listen Up about Workplace Noise Monitoring

November 7, 2019

Listen Up about Workplace Noise Monitoring – Kicking it up a notch

According to OSHA, each year 22 million employees are exposed to hazardous noises at work, making hearing loss the most common work-related injury. It’s time to understand, and consider, the role technology can play in workplace noise monitoring.

According to OSHA, each year 22 million employees are exposed to hazardous noises at work, making hearing loss the most common work-related injury. It’s time to understand, and consider, the role technology can play in workplace noise monitoring.
Setting Standards in Place

 

noise

The goal of all employers should be for their employees to leave work in the same condition as they began—healthy and safe. When an organization displays its dedication to employee safety through responsible practices and initiatives, it results in increased productivity and employee morale, as well as decreased insurance costs.

In 2018, ISO 45001 was established as the new standard for occupational health and safety (OHS) to reduce the burden of regulation and prevent workplace injuries and fatalities, providing a framework to improve employee safety and create safer working conditions. It is an international standard that specifies requirements for an OHS management system, with guidance for its use and to enable an organization to proactively improve its OHS performance in preventing injury and ill health. ISO 45001 is intended to be applicable to any organization regardless of its size, type, or nature, and all of its requirements are intended to be easily integrated into an organization’s own management processes.

Hazards and risks in the workplace need to be identified and, more importantly, eliminated or reduced to appropriate levels.

ISO 45001 highlights both noise and dust exposure issues, as well as the value of workplace monitoring. Research shows that stronger occupational regulation of noise leads to safer sound levels, which results in safer employees.

Impacts of Occupational Hearing Loss

NIOSH recommends that workers are not exposed to noise at a level that amounts to more than 85 decibels (dBA) over eight continuous hours. An estimated 24 percent of hearing loss in the United States has been attributed to workplace exposure, according to the Centers for Disease Control and Prevention.

Although noise-induced hearing loss is one of the most common occupational illnesses, it is often ignored because there are no visible effects. It usually develops over a long period of time and, except in very rare cases, there is no pain. What does occur is a progressive loss of communication, socialization, and responsiveness to the environment. In its early stages, it affects the ability to understand or differentiate speech. As it progresses to the lower frequencies, it begins to affect the ability to hear sounds in general.

The primary effects of workplace noise exposure include noise-induced temporary threshold shift, noise-induced permanent threshold shift, acoustic trauma, and tinnitus. A noise-induced temporary threshold shift is a short-term decrease in hearing sensitivity that returns to the pre-exposed level in a matter of hours or days, assuming there is not continued exposure to excessive noise.

If noise exposure continues, the shift can become a noise-induced permanent threshold shift, which is a decrease in hearing sensitivity that is not expected to improve over time. If workers experience standard threshold shifts, employers are required to fit or refit the workers with hearing protectors, train them in the use of the hearing protectors, and require the workers to use them.

 

noiseThe effects of excessive noise exposure are made worse when workers have extended shifts (longer than eight hours). With extended shifts, the duration of the noise exposure is longer and the amount of time between shifts is shorter. This means that the ears have less time to recover between noisy shifts and damage can more quickly become permanent.

Tinnitus, or “ringing in the ears,” can occur after long-term exposure to high sound levels, or sometimes from short-term exposure to very high sound levels. Regardless of the cause, this condition is a disturbance produced by the inner ear and interpreted by the brain as sound. Individuals with tinnitus describe it as a hum, buzz, roar, ring, or whistle, which can be short term or permanent.

Hazardous levels of noise exposure should be a priority for employers to monitor to avoid implications for both themselves and their employees.
Measuring noise levels and noise exposure is the most important part of a workplace hearing conservation and noise control program. It helps identify locations where there are noise problems, employees who may be affected, and where additional noise measurements need to be made.

Changing the Workplace with Technology

To assess the risk of workplace noise, a variety of monitoring solutions may be installed and utilized. Noise dosimeters are ideal for personal exposure monitoring and a mobile workforce, while sound level meters can be used to check areas or an individual’s exposure for a stationary task. Plus, we are also seeing in an increase of customized hearing protection such as molded hearing like dB Blockers. Customized hearing solutions are costly up front but they last 5 years and are custom fit to the ear leaving little margin of noise error.

Noise exposures are monitored using established technology and are the responsibility of occupational hygienists, a health and safety manager, or another trained expert. Data collection provides concrete information highlighting key paths for change and can help the organization to achieve compliance with government standards and protect its workforce effectively. Some of the devices that companies are using are Fit Check Testing devices where they will measure any earplug from any source. Some examples of these are Custom Protect Ear’s FitCheck Solo.

To increase the success of workplace noise monitoring, workers must understand its importance and the long-term, negative health effects that could result. If noise monitoring technology is used, quantitative data can be captured and any risks or potential areas of concern can be identified.

SOURCE
By Justin StewartSep 01, 2019 – https://ohsonline.com/Articles/2019/09/01/Listen-Up-Kicking-Workplace-Noise-Monitoring-Up-a-Notch.aspx?Page=3

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Solving the Hearing Loss Epidemic – One Ear at a Time

April 16, 2019

Exposure to high levels of noise can cause permanent hearing loss, and each year approximately 30 million people in the United States are exposed to hazardous noise in the workplace.

According to OSHA, “Loud noise can create physical and psychological stress, reduce productivity, interfere with communication and concentration, and contribute to workplace accidents and injuries by making it difficult to hear warning signals,” the agency states, adding that noise-induced hearing loss can impair a person’s ability to understand speech and communicate.

Noise-related hearing loss has been listed as one of the most prevalent occupational health concerns for more than 25 years. Thousands of workers every year suffer from preventable hearing loss due to high workplace noise levels. In 2009 alone, BLS reported more than 21,000 hearing loss cases. Neither surgery nor a hearing aid can help correct this type of hearing loss.

Short term exposure to loud noise can also cause a temporary change in hearing (your ears may feel stuffed up) or a ringing in your ears (tinnitus). These short-term problems may go away within a few minutes or hours after leaving the noisy area. However, exposure to loud noise can lead to permanent tinnitus and/or hearing loss. The effects of hearing loss can be profound. Noise induced hearing loss limits your ability to hear high frequency sounds, understand speech, and seriously impairs your ability to communicate. Learn more about the symptoms of Noise Induced Hearing Loss (NIHL)

What are the warning signs that your workplace may be too noisy? Noise may be a problem in your workplace if:

  • You hear ringing or humming in your ears when you leave work
  • You must shout to be heard by a coworker an arm’s length away
  • You experience temporary hearing loss when leaving work.

Sound Advice on Hearing Protection

Technology

Advances in technology allow employers to provide workers with hearing protection that doesn’t disrupt situational awareness. This includes the addition of FT filters embedded in medical grade silicone custom hearing protection, called dB Blockers. The proprietary frequency tuned filter allows communication without removal of the ear plugs. People can communicate in noise better while wearing their dB Blocker™ hearing protection, then if they were to remove them. A dB Blocker Hearing Loss Prevention Program will enhance productivity.  Workers can communicate without having to remove their hearing protection, preventing hearing loss and avoiding mistakes due to miscommunication.

How to Wear

Just because you own hearing protection does not mean you are wearing it correctly. If hearing protection isn’t worn the way it’s designed to be worn, workers are more vulnerable to injury. This may seem straightforward, yet, a large percentage of users don’t take the time to wear hearing protection properly.

Another common problem is overprotection. When workers use hearing protection that prevents any sounds from being heard, a worker may be considered “functionally deaf” and this is a safety issue.  If a worker has trouble communicating with co-workers, or can’t hear emergency signals, back up signals or dangerous noises this may lead to injury or death.

Fit check surveys continue to imply numerous employees are not wearing their options properly. Most companies in the industrial sector have gone above and beyond to ensure that in-house hearing protection meets the occupational standards, but if workers are not complying and educating themselves – we will not solve the hearing loss epidemic.


Don’t take your hearing for granted, we don’t realize we have hearing loss until it is too late.

SOURCE:

https://www.osha.gov/SLTC/noisehearingconservation/healtheffects.html

https://ohsonline.com/Articles/2007/10/Fit-Testing-of-Hearing-Protectors.aspx