3M Peltor Optime 105 behind-the-head earmuffs features low-profile earcups that fit well with most helmets, Feature double-shell technology for effective hearing protection.
From the Manufacturer
3M™ Peltor™ Optime™ 105 Behind-The-Head Earmuffs are recommended for time-weighted average (TWA) noise exposures up to 105 dBA. The behind-the-head design allows for easy use with hard hats. The wide foam-filled cushions help create a comfortable noise-blocking seal. These comfort features may encourage a higher rate of hearing protection compliance among workers who require hearing protection. Recommended applications for these earmuffs include chipping, chiseling, drilling, furnace operations, grinding, heavy equipment operations, machining, pouring/casting, power fastening, riveting, sanding, sawing, and welding. These behind-the-head earmuffs are commonly used in the following industries: construction, general manufacturing, mining, oil and gas, and transportation.
For noise exposures up to 105 dBA, these lightweight and comfortable Optime 105 earmuffs have a Noise Reduction Rating (NRR) of 29 dB. The proprietary Twin-Cup™ design features double-shell technology to provide effective hearing protection.
Exposure to loud noises can adversely affect the ability to hear over time. Wearing proper hearing protection devices can help in reducing the harmful effects of noise. Sound levels are expressed in decibels, often abbreviated as dB. Higher decibel numbers indicate louder sounds. Typical decibel levels associated with common sounds include: outdoors with no people or traffic 20 dB, normal conversation 60 dB, power lawn mower 90 dB, chain saw 110 dB, and 12-gauge shotgun 165 dB. The hearing protector NRR can be used to evaluate different hearing protection options. However, the actual level of protection varies depending on fit, wearing time and other factors.
For more than a century, 3M has applied innovation and technology to improving our customers’ lives and supporting their business goals. Today the company, from its headquarters in St. Paul, Minnesota, serves industrial and commercial customers and consumers in nearly 200 countries. Personal Safety products, focused on worker safety, include respirators, hearing-protection products, air-monitoring devices, environmental-safety products, and comprehensive training programs. The 3M brand, across thousands of products, represents consistency, superior quality, and value.
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