Earplugs are one of the most common and easiest types of hearing protection devices to use. They come in both disposable pre-formed foam earplugs and reusable custom-molded silicone earplugs. Pre-formed foam earplugs are self-fitting and provide around 26-29dB of noise reduction. They can easily be shaped and rolled down to fit comfortably in the ear canal. Custom-molded silicone earplugs are...