Hearing Protection
All about ear plugs and noise reduction
Each year, more than 30 million Americans risk damaging their hearing in the workplace by using loud machinery and equipment. One-third of those people eventually suffer some degree of permanent hearing damage. This hearing loss can be triggered by exposure to brief, intense noises or develop progressively from prolonged exposure to loud sounds.
Fortunately, noise-induced hearing loss is completely preventable with proper hearing conservation practices and the use of protective inserts for the ears. Employers can create safer environments by installing acoustic sound barriers or mufflers and providing effective ear protection to employees, including disposable or reusable ear plugs, canal caps and ear muffs. Much like hard hats and safety boots, ear protection is required by law in high-risk environments. Noise Reduction Ratings (NRR) are published on hearing protection devices, but these numbers are not always accurate indicators of protective capacity, so it is also important to get tested regularly to detect hearing loss in its early stages.
Noise-related hearing loss is triggered when excessive sound pressure is exerted on the inner ear structures and cells, leading to cellular metabolic overload. While employers in the United States must ensure that employees are not exposed to more than 90 decibels (dB) for eight hours a day, scientists agree that a stricter limit of 85 dB is more appropriate. Even when employers provide adequate protection, many adults admit to engaging in noise-related recreational activities or using loud equipment at home without proper hearing protection. Since noise doubles at the rate of 3 dB, it is especially important for individuals with a history of hearing problems to reduce exposure as much as possible.
Ear plugs are used because they are inexpensive and readily available. Expandable foam ear plugs, which are made of a pliable material that conforms to the shape of each individual’s ear canal, are one type of disposable product. Reusable molded ear plugs are less expensive but they’re pre-sized, making finding the correct fit a little trickier. To eliminate fit problems and address differences in right and left ear size, custom ear plugs are also available.
Why Are Ear Plugs Essential for Hearing Protection?
- Frequent exposure to more than 85 dB of noise can result in temporary or permanent hearing loss, as well as tinnitus (ringing in the ears).
- Ear plugs sharply reduce your exposure to high-decibel sounds, protecting your hearing.
Things to Consider When Choosing Ear Plugs
- How frequently will you need to use ear plugs?
- What is the appropriate NRR for your work environment?
- Is the product designed to fit securely in the ear canal? Does it fit comfortably inside the ear?
Top Brands of Ear Plugs
- E.A.R. ear plugs
- Moldex disposable ear plugs
- North corded ear plugs
