Having just acquired a set of Isotunes-Pro, noise cancelling bluetooth headphones, I was doing some research and found the following. One video mentioned 27 Decibel NRR rated earphones will actually be about, 27 minus 7 or 20, divided by 2 equals 10 NRR in practice. Do some Google searching and see what you find. I was quite shocked. Know what you are buying.
NRR Ratings
The performance of earplugs and earmuffs varies between brands and styles. One way to choose a hearing protector is to compare Noise Reduction Ratings. The Noise Reduction Rating, or NRR, measures the muff's or plug's ability to block out noise or "attenuate"; sound. This measurement is stated in decibels; a plug with an NRR of 26 blocks out a maximum of 26 decibels of noise. The NRR listed is the maximum protection that could be achieved if the plug fit the wearer perfectly and was inserted correctly. In most work situations attenuation is half of the listed NRR. For example, if the NRR is 30 the hearing protector most likely blocks out 15 decibels of noise.
All of the earplugs and muffs we stock have been tested by an accredited laboratory that assigned an NRR rating. As you look through our selection, look for the NRR rating by each style of protection.
Also peruse the following article. Yiu young guys still have a chance to protect yourselves, while we old birds suffer with the confusing information.
NRR Ratings
The performance of earplugs and earmuffs varies between brands and styles. One way to choose a hearing protector is to compare Noise Reduction Ratings. The Noise Reduction Rating, or NRR, measures the muff's or plug's ability to block out noise or "attenuate"; sound. This measurement is stated in decibels; a plug with an NRR of 26 blocks out a maximum of 26 decibels of noise. The NRR listed is the maximum protection that could be achieved if the plug fit the wearer perfectly and was inserted correctly. In most work situations attenuation is half of the listed NRR. For example, if the NRR is 30 the hearing protector most likely blocks out 15 decibels of noise.
All of the earplugs and muffs we stock have been tested by an accredited laboratory that assigned an NRR rating. As you look through our selection, look for the NRR rating by each style of protection.
Also peruse the following article. Yiu young guys still have a chance to protect yourselves, while we old birds suffer with the confusing information.
Earplug & Noise Reduction Ratings Explained
Cooper Safety Supply is committed to providing ANSI & OSHA Certified ear plugs, ear muffs & noise reduction products for industrial & commercial applications.
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