To control and prevent the hazards of noise, first of all, eliminate or control the noise source and reduce the noise intensity in the way of noise transmission.

For noise that cannot be eliminated or controlled from the sound source and route of propagation, individual protection at the noise reception point is required. The commonly used personal protection measures are: to allow workers to wear noise protection earplugs, noise protection earmuffs, helmets and other anti-noise protection gear, to reject noise outside the human ear. Should be based on the noise level of sound selection of suitable anti-noise earmuffs earplugs, use of anti-noise earmuffs earplugs should pay attention: earplugs have different models, the use of personnel should be equipped with their own ear canal size; anti-noise caps also by size semicolon, wear The user should choose according to his own head type.

In the use of earmuffs earmuffs, it must be made with the ear canal (ears), the ear shell outside the edge (ears) tightly close, in order to play a good protective effect. When wearing earplugs or earmuffs, proper selection and reasonable use should be made for different protective equipment.

(A) The use of earplugs

Wear earplugs should pay attention to the following related matters:

1. When inserting and inserting various noise reduction earplugs, the earplugs of the earplugs shall be first reduced, and the body parts of the earplugs shall be gently pushed into the external auditory meatus, and the earplug body shall be fitted to the cavity of the earmuffs as far as possible. But don't rush too hard or too deeply, so feel comfortable with yourself.

2. If you feel bad sound insulation after wearing, you can slowly turn the earplug to adjust to the best position. If the result of the investigation is still not good, consider using earplugs of other models and specifications for repeated trials, and finally select the appropriate type of earplugs.

3. When wearing foam earplugs, the cylinder should be smashed into a cone and then inserted into the ear canal, so that the plug body self-rebound, filling the ear canal.

4. Wearing earplugs made of silicone rubber, should distinguish the left and right plugs, can not be mistaken; when inserting the external auditory canal, it should be slightly rotated to put the position, so that it tightly attached to the ear cavity.

(b) Use of earmuffs

Wear noise reduction earmuffs should pay attention to the following related matters:

1. When using the earmuffs, check whether the cover has cracks and air leakage. When wearing, pay attention to the orientation of the cover and wear it in the shape of the ear.

2. Place the attachment arches in the proper position on the top of the head so that the earmuffs' soft washers and the surrounding skin fit together as closely as possible. If it is not suitable, move the earmuffs or the bow frame slightly, and make sure to adjust it to a suitable position.

Whether wearing earplugs or earmuffs, they should be worn before entering the noisy workshop. They must not be taken off at work to avoid harming the tympanic membrane. If you take it off, it is best to take off the earplugs and earmuffs when you are at rest or leave the workshop and then go to a quiet place to gradually recover your hearing.

Anti-noise and noise protection The protective effect of earmuffs and earplugs depends not only on the quality of the product itself. It also depends on the correct use of the method, and develop the habit of using it in order to receive actual results.

Anti-noise earmuffs Earplugs should be stored in a special case after use to prevent them from being deformed by extrusion or heat. After use, it needs to be washed with soap and water, dried and then stored. Rubber earplugs should be sprinkled with talcum powder and then stored so as not to deform.

China Labor Insurance Network