Hearos Ear Plugs, Xtreme Protection Series 7 pr
Tuesday, March 1st, 2011 at
5:59 pm
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Total Customer Reviews: (11)
List Price: $5.99
Sale Price: $2.48
Availability: Usually ships in 1-2 business days
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7 Pair Value + Free CaseXteremly Soft Foam Highest NRR 33 dBNoise Reduction Rating: 33 Decibels (when used as directed) The range of noise reduction ratings is for existing hearing protectors is approximately 0 to 30 (higher numbers denote greater effectiveness)Testing according to ANSI Specs S3.19-1974: The level of noise entering a person-s ear, when hearing protector is worn as direct, is closely approximated by the difference between the A-weighted environmental noise level and the NRR. Example: 1. The environmental noise level as measured at the ear is 92 decibels dB(A). 2. The NRR is 33 decibels (dB). 3. The... [Read More]
