They should initially be fitted to your ear by an audiologist. Cotton plugs may change the tone of noise but are not effective in reducing damaging sound levels. Earmuffs Ear muffs are cup-type devices that cover the external ear. Muff protectors can be taken off quickly and put on as needed. They are ideal where loud noise is intermittent.
Muffs provide more dependable protection than ear plugs.
Body Protection Proper clothing for the Job is necessary to ensure safety during many operations. Leather clothing or aprons offer protection from sparks and hot metal splashes, which may be encountered during welding or cutting with a torch. Pads are available and should be worn to protect the shoulders and back when heavy loads or rough-edged objects are carried. Knee pads should be worn for work when kneeling continuously. Aprons, coats, and garments that are made of impervious materials should be worn for protection against toxic chemicals.