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Loudness growth contours, also known as equal-loudness contours, describe how the human ear perceives sounds of different frequencies at different loudness levels. These contours indicate that the ear is more sensitive to some frequencies than others at lower sound levels....

No, NRR (Noise Reduction Rating) alone does not fully explain the hearing protection offered by earplugs. While NRR provides a standardized measure of the earplug's ability to reduce noise levels, it does not account for all the factors that can...

Noise can cause many issues with our health, above and beyond just hearing loss.  This article, posted on wellness.com, explains some of these other health concerns, including cardiovascular effects, sleep disorders, and stress.  Reduce your risk by using Earasers anytime...

We have the first "flat frequency response" earplug as measured using the data attained by the Virginia Tech Auditory Systems Laboratory.  We are not the first "flat attenuation" earplug.  Here is the difference: Earasers utilize “V-Filter”™ Acoustic Resonance Technology which...

When you research "flat attenuators" you will see that they are only flat in a small range in the middle frequencies. Carefully observe the far reaches of the bandwidth, and you will find very aggressive changes, steeply sloping drop-offs, to...