There is wear and tear on hearing aids. Think of the environment in which they’re used – the ear canal – there’s humidity, debris, bacteria, earwax. And though the technology does change and improve, it’s more likely that your hearing needs, and the shape of your ears and ear canals, will change over time. During your Hearing Aid Evaluation your audiologist will: Explain your hearing test results Learn your communication needs (ie: social, occupational) Discuss different levels of technology and sizes of hearing aids Help you to establish realistic expectations Inform you of a 45-day trial period