EarDial has a special earwax protection in the tip to keep your filter clean, so you will need to clean them less often than other earplugs, but when you see they need a clean up, it's very easy. You just need to remove the filter and wash in water with soap. Full instructions are inside the package. Keep in mind that we made our internal cylinder narrower than most earplugs, to make sure it holds tightly the filter, so it might be a bit more difficult to remove than others, but you will need to do it less often. How often will depend on your usage and earwax production, but most of you will need to do it once or twice a year.