The first thing to do after distributing the custom moulded earplugs to your employees is to remind them of the importance of wearing them gradually. Even when the moulded ear plugs fit perfectly in the ears, they are still not a part of the body. Wearing them can be troublesome for your employees. It is therefore recommended to wear them regularly, but gradually: 2 hours during their shift for the first few days, and then gradually increase the duration. It takes two to three weeks to fully adapt.