Disposable ear plugs should be thrown away after use. Reusable ear plugs should be cleaned each day with soap and water. Canal caps seal the entrance to the ear canal with soft pads connected to a headband. Workers who find ear plugs annoying may prefer canal caps. They are comfortable, more sanitary than ear plugs, and inexpensive but may not effectively seal the ear canal.
Ear muffs consist of ear cushions, head band, and ear cups.
They fit over the outer ear and provide the greatest protection against high frequency sounds. Ear muffs seldom come loose, can be adjusted for comfort and are more sanitary than other hearing protective devices. Ear muffs are generally worn by workers who frequently move in and out of high noise areas. However, they may not be as comfortable as ear plugs and canal caps, especially in hot weather. They are more expensive and may be difficult to wear with other protective equipment.