Webcast: Learn More About the Limits to Hearing Protector Attenuation


ST. PAUL, Minn. — Bang, Bang! Loud noises from weapons might be something you might get accustomed to at work, but that doesn’t mean it is safe for your hearing.

With the ability to generate louder and louder sounds, especially from modern weapon systems with instantaneous noise levels even exceeding 150 decibels (dB), there is an increased need for greater hearing protection. This requirement for better hearing protection can also certainly apply to construction sites, mining and other jobs involving loud, heavy machinery.

You may not realize though that the limits imposed by bone and tissue conduction (BC) to the inner ear provide a flanking sound pathway that must be contended with in order to prevent damage. So too, BC influences our ability to measure hearing sensitivity when we couple vibrating earphones to the skull and it also influences our experience of our own voice.

We will be hosting a talk on Tuesday October 24 at 1:00 – 2:15 PM EST that will review the various pathways through the outer, middle, and inner ear, as well as via cerebrospinal fluid, and explore dealing with them using existing technology vs. advanced electronic concepts or products. We’ll break all of this down in simple to understand terms and what can be done to help prevent damage to your hearing.

Limits to Hearing Protection Webcast








For instance, the BC limits range from 40 – 60 dB across the frequencies from 125 Hz to 8 kHz. Research on the effects on the BC pathways of a flight helmet, triple hearing protection, and deeply inserted passive foam earplugs worn in combination with conventional earmuffs, or with active noise reduction (ANR) earmuffs, will be presented and how this can cut down on the effect of such loud noises you may be hearing on a constant basis.

Log in, listen, and learn, so that you and those in your hearing conservation program will understand how to select and fit hearing protection for maximum attenuation and effective employee protection.

Elliott BergerThe talk with be hosted by Elliott H. Berger who is a Division Scientist for 3M’s Personal Safety Division. For over 40 years he has studied hearing protection, hearing conservation, and related topics, and authored 17 textbook chapters and over 75 published articles. He currently chairs the American National Standards Institute (ANSI) working group on hearing protector attenuation and is also a Fellow of the Acoustical Society of America (ASA).

Elliot has served on a National Academy of Science committee on hearing loss in the military, is a Past President of National Hearing Conservation Association (NHCA), Fellow of the American Industrial Hygiene Association (AIHA) and Past-Chair of its Noise Committee, a past Board Member of the Council for Accreditation in Occupational Hearing Conservation (CAOHC), and a recipient of NHCA’s Lifetime Achievement Award.

Elliot not only knows the subject matter, but is committed to helping employers help workers protect their hearing so they can enjoy their lives outside of work.

Join us for this informative and helpful discussion the science surrounding how loud noises you may encounter at work affect your hearing in every aspect of your life and how to select and fit hearing protection for maximum attenuation and effective employee protection.

#3MScienceofSafety, #NAAM, #audpeeps