Sound Pressure Level (SPL) and the Decibel Scale (dB) 101

Hearing protection is something we talk a lot about on any job. Hearing loss is one of those things that happens over time, so it’s not always a priority for younger guys and gals. But that scene of an old lady shouting at her husband just to be heard is only cute in movies and TV. It sucks in real life. With that in mind, we decided to put together a quick guide to understanding sound pressure level and the decibel scale (or dB scale).