Hearing impairments or hearing loss affect a person's social, professional, and personal activities, and are therefore closely linked to quality of life. The largest group of hearing-impaired patients consists of older adults whose hearing deteriorates with age, but hearing disorders also affect children and people of working age. The use of an appropriate and properly adjusted hearing aid can help improve hearing and speech comprehension in cases of hearing loss. One of the most common causes of hearing loss or damage is exposure to excessive noise. For this reason, it is important to focus on prevention, which includes the use of hearing protection. The aim of this article is to present the basic types of hearing aids and to provide a brief overview of their use, adjustment options, and available maintenance tools. Additionally, the article offers an overview of various types of devices used for hearing protection.