Earmuffs
Question: I work in a loud potato processing plant. I often use earmuffs over my earplugs. Would I be blocking out both NRRs combined, or would it be another amount?
Answer: Apparently not. See link below.
http://www.hearingreview.com/issues/arti cles/2007-03_03.asp
store.pksafety.com We take a look at the Bilsom L3 Ear Muff to see what makes it such a popular hearing protector. www.pksafety.com 800-829-9580
Ear muffs are easy to make once you have a frame to work with. Here I show you how you can make your own frame using hard wire... or a coat hanger ...
Last week, we told you about the disappointing experience readers had with active noise cancellation headphones - similar to widely advertised Bose products - purchased a day prior to their three-month trip to many of the places they had been in the Pacific during their naval careers.
The headphones were described by a salesperson as "taking you from a noisy airplane into a quiet living room" and cost around $300 a pair.
While some airplane noise was reduced, their performance was far from what the couple had been led to believe. Returning home and paying a visit to the electronics store, they were refused a refund due to a 30-day policy.
You and the Law was asked if we could help get them a refund and to look into the world of noise cancelling headphones. "Do they really work, or is it just hype?"
Noise cancellation or isolation?
Active noise cancellation was a term made popular in the consumer market by Bose Corporation with its range of Quiet Comfort headphones launched more than 10 years ago. Since then, a number of other manufacturers have released their own versions of this technology at prices which range from less than $30 to well over $500.
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You and the Law: Don't overspend on noise cancellation headphones Two incredible bargains in passive hearing protection are the Peltor H10A or the Howard Leight Thunder T3 earmuffs. From Amazon, they sell for around $20. On an airplane, it's "Bye, bye, world," with 30dB of quieting, which is enormous. ... |
