Hearing protectors are required to prevent noise induced hearing loss. Hearing protection devices reduce the noise energy reaching and causing damage to the inner ear. Ear muffs and earplugs are the most common types of PPE.
Earplugs are generally safe. However, they do come with a few potential side effects, especially if you use them regularly. Over time, earplugs can push earwax back into your ear, causing a buildup. This can cause several problems, including temporary hearing loss and tinnitus.