You need to protect your hearing if you're frequently around loud noises. Ear plugs are a necessary piece of personal protective equipment on a jobsite because they protect your delicate ears. If you only need them once in awhile, disposable ear plugs will do the trick. However, if you work in noisy areas often, you should invest in reusable ear plugs. Look for the best ear plugs that suit your needs from brands like 3M.