Believe it or not, Ear Wax is the #1 reason your hearing aids may not be functioning properly. Cleaning your ReCharge! Behind the Ear Hearing Aid is very easy with the accessories provided in the kit. For best results, Hearing Assist recommends you clean your Hearing Aid before or after each use, or at least a couple times a week. We also recommend replacing your ear caps regularly (2x/month or more or less depending on your conditions) as well as your tubes from time to time. Hearing Assist offers replacement ear caps in 10 packs, as well as replacement tubes–all at low prices. Please contact us at 800-640-9785 for details.