HEARING PROTECTION

What is Hearing Protection ( Hear Protection )?

Hearing Protection ( Hear Protection ) are  Earplugs, earmuffs, and noise-canceling devices to prevent hearing damage. Hearing Protection ( Hear Protection ) is an Important Protection on Mining ,Industrial ,Oil And Gas And For Contractor to Protect them from noise polutions.

Do you work in an environment with high sound levels? In that case it is very important to consider Hearing Protection ( Hear Protection ). Earplugs are very comfortable, but earmuffs are convenient on the work floor as you can quickly put these on or take them off.

Hearing Protection means Safeguard your hearing.

There are three main types of ear protection, these include:

• Ear defenders (ear muffs) – The cups are lined with a sound absorbing material, this helps to reduce the level of noise to the ears
• Ear plugs – These fit into the ear canal and form a seal, they also can have a cord on them, that you can put behind the back of the neck, to help prevent them from becoming lost.
• Canal caps – These are similar to ear plugs, however they offer less protection they are suitable for operations where earplugs would be frequently taken out and put back in.

Hearing Protections ( Hear Protection ) meaning

Noise-induced hearing loss is the term for hearing damaged by exposure to excessive noise. The damage to hearing caused by excessive noise at work may not be apparent for years. Hearing loss can’t be treated or cured but can be prevented.

Sound And Noise

• Sound is what you hear. Our sensation of very small, rapid changes in air pressure.
• Noise is any sound that you don’t want to hear. Sound is measured in two ways: decibels and frequency.
• Decibels indicate the pressure of sound. Sound waves transfer that pressure from place to place and are expressed in units on a logarithmic scale.
• Frequency is related to a sound’s pitch and is measured in units called hertz (Hz), or cycles per second. The pitch of a sound – how high or low it seems – is how you perceive its frequency.
Human hearing is most sensitive to frequencies between 3,000-4,000 Hz. That’s why people with damaged hearing have difficulty understanding higher-pitched voices and other sounds in the 3,000-4,000 Hz range.

Hearing Conservation Program

Hearing Protection ( Hear Protection ) on Your workplace must have a hearing conservation program if employees are exposed to noise levels equal to or greater than 85 dBA average over eight hours (called the 8- Hour Time Weighted Average). This is called the “Action Level.” Check out course 751, Hearing Protection ( Hear Protection ) or Hearing Conservation Program Management  is Important, for more in-depth information regarding hearing conservation.

Hearing Protectors

As you are probably aware, there are four types of hearing protectors or Hearing Protection ( Hear Protection ).
• Molded earplugs are usually made of plastic or silicone rubber. They are available in various shapes and sizes and are usually characterized by one or more ribs or contours. They are considered multiple uses; therefore, they must be cleaned and properly stored after each use.
• Custom-molded earplugs are generally made of plastic and are designed from a molded wax insert of the wearer’s ears. They are considered multiple uses but cannot be switched ear to ear.
• Self-molded earplugs are generally made of mineral down or plastic foam and are molded or formed by the wearer. Generally, one size fits all and may be either single or multiple users.
• Earmuffs are designed to be multiple uses and may be designed to be worn with the harness over or behind the head or below the chin. They are generally more comfortable but usually provide less noise reduction, thus less protection, than ear plugs.