Getting the right fit: Hearing protection basics
Violations of OSHA’s Occupational Noise Exposure standard (1910.95) generally bring to mind employers not having a hearing conservation program (HCP) or not including all affected employees in their program. But have you heard that another frequent violation of the standard is proper fit of hearing protective devices (HPDs)? What’s the best way to ensure employees get the right fit? And why is this so important?
I sat down for a chat about hearing protectors with my colleague Cindy Pauley. In addition to her role as an editor on our Environmental, Health, and Safety (EHS) team, Cindy is also a Certified Occupational Safety Specialist (COSS) and a Certified Occupational Hearing Conservationist (COHC).
Editor: Cindy, what should workers and employers know about HPDs?
Cindy: First, I always like to remind people that the best hearing protection is that which is worn. Once employees are accustomed to wearing hearing protection, then a focus can be placed on proper fit.
For more information, see the article “Study: Over half of noise-exposed workers don’t use hearing protection.” |
Cindy: Proper fitting hearing protection depends upon the type worn. Most workers prefer foam ear plugs. The foam body of the earplug should be within the ear canal. So, workers should roll the ear plug until it’s fairly thin, pull up slightly on their ear with the opposite hand, then insert the plug into their ear. They should hold the ear plug in place while the foam re-expands. Once both ear plugs are inserted, they should perform an “inspection” like they would any other safety equipment. This is done by cupping their hands tightly over their ears. If sounds are much more muffled with your hands in place, the earplug may not be sealing properly. They should remove the earplug and try again.
Workers opting to use earmuffs may think they’re fail-proof. However, earmuffs can also be ill-fitting. They can slip down or be bumped out of place, allowing damaging noise to enter the ears. With earmuffs, the ears should be completely enclosed by the ear cups. If not, the cups should be adjusted up or down so the headband fits securely at the crown of the head. The best protection is obtained when the cushions can be pushed toward the head, and when released still muffle noise.
Employers should always offer a variety of ear plugs and earmuffs to ensure employees can select and use the option that works and fits best for them.
Editor: One of the components of an HCP is supervising the correct use of all HPDs and ensuring employees get a proper initial fitting. Cindy, do you have any advice or tips around that?
Cindy: Sure. Supervising the correct use of HPDs should be treated no differently than supervising the use of machine guarding or lockout procedures. First, the effects of hearing loss are devastating to the worker since the hearing loss is permanent and would impact their work and personal life. And it can be extremely costly for the organization. Here’s what I mean:
In 2018, the National Library of Medicine evaluated 14 U.S. metal manufacturing facilities operated by a single company. They found that annual HCP costs ranged from roughly $67,000 to $400,000 (averaging a little over $300 per worker). Hearing impairment prevalence was still about 15 percent overall.
So, that’s just the cost of HAVING a program. Without supervisory oversight and enforcement of proper HPD use, workers could still be exposed to hazardous noise. Exposing workers means additional costs are likely, such as potential OSHA citations and worker’s compensation claims. OSHA citations increased this year to $15,625 for each serious violation. Penalties related to occupational hearing loss are estimated at $242 million in Workers’ Compensation claims annually. These costs can be devastating to any organization.
Key to remember: Proper fit of HPDs is key to protecting workers’ hearing when they’re exposed to hazardous noise levels. OSHA’s Occupational Noise Exposure standard requires that employers ensure proper initial fitting and supervise the correct use of all HPDs. Employees also must be trained in the use and care of HPDs.