Objects or devices which insert into the ear canal or cover the outer ear and which have a variety of applications. They may protect the ears from exposure to caustic materials, extremely cold temperatures, or excessive noise; serve as a barrier against solid particles collecting on the surface of the outer ear (auricle); prevent accidental injuries from flying objects in industrial activities, from contact during physical activities, or from excessive heat or fire; prevent moisture or solid particles from entering the ear canal; reduce noise to acceptable levels so signals are heard better through earphones; and protect the outer ear from direct sun rays. The purpose for wearing ear protectors determines the characteristics of the device to be used.