--- title: Industrial Contractor Blog | Ear Protection description: Ear Protection | --- [** Login](https://www.quadcitysafety.com/request-an-account) [Blog](https://www.quadcitysafety.com/#KB) [Contact Us](https://www.quadcitysafety.com/contact-us) [Request a Quote](https://www.quadcitysafety.com/contact-us-need-help) [Resources](https://www.quadcitysafety.com/#KB) [Services](https://www.quadcitysafety.com/services) [View Cart](https://www.quadcitysafety.com/cart) [Checkout](https://www.quadcitysafety.com/cart) [![Quad City Safety](https://hub.quadcitysafety.com/hs-fs/hubfs/images/logo-light.png?width=200&height=71&name=logo-light.png "Quad City Safety")](https://www.quadcitysafety.com/) **Call**: (563) 445-2170 or **[Help Me!](https://www.quadcitysafety.com/contact-us-need-help)** ### Search In Progress # Industrial Contractor Blog ## [Noise Reduction Rating: Do you know the easy NRR equation for hearing protection?](https://hub.quadcitysafety.com/contractor/blog/hearing-protection-noise-dose) [![](https://hub.quadcitysafety.com/hs-fs/hubfs/Hearing%20Protection.jpg?width=488) ](https://hub.quadcitysafety.com/contractor/blog/hearing-protection-noise-dose) Topics: [Hearing protection](https://hub.quadcitysafety.com/contractor/blog/topic/hearing-protection), [Ear Protection](https://hub.quadcitysafety.com/contractor/blog/topic/ear-protection), [Noise Dose](https://hub.quadcitysafety.com/contractor/blog/topic/noise-dose) Do you know how to use NRR to calculate hearing protection? The way hearing protection equipment works is often misunderstood and this can expose workers to the risk of potential hearing loss. Some contractors assume that the Noise Reduction Rating (NRR) is the actual level of protection that an ... 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