Reusable earplugs are designed with reuse in mind. Made from resilient materials, they clean easily and remain easy to use, insert and wear. Sometimes, though, the earplugs have a residual buildup. Most of the residue is from wax building up in the ears and rubbing off on the earplug. However, there are some instances when the residue is from ot...

Ear protection equipment is classified by its Noise Reduction Rating (NRR), a grading that determines a device’s ability to decrease sound exposure in an environment. NRR is sometimes referred to as “hearing protection rating.” Organized by their potential to reduce noise in decibels (dB), a term used to measure the power or loudness of sound, h...