Quick facts on hearing protection in the workplace

Exposure to loud noises has serious short-term and long-term health effects for employees, including permanent hearing loss. Some effects of industrial noise include increased irritability, difficulty concentrating, reduced productivity and an increased opportunity for accidents.

And yes, while everyone may realise the importance of hearing protection, “loud” may not be as loud as you think.

How loud is loud

The definition of unsafe noise is complex, but it is considered that an average of 90 decibels (dB) over eight hours to be the upper limit of safe exposure. When industrial noise hits 85dB companies must take action, which includes onsite monitoring, employee testing, and making hearing protection available. But, how loud is 85dB? Here are the dB levels of some common sounds:

> Typical office noise: 50dB
> Average traffic: 85dB
> Power lawnmower: 90dB
> Chain saw: 105dB
> Heavy machinery: 120dB
> Jackhammer: 130dB

Measurement
Noise in the work environment can be measured in two different ways. Sound level meters are portable instruments that report the dB level in a particular location at a particular time. Firms use sound level meters to identify potential issues and make assessments. For a more accurate measurement, a noise dosimeter, a more sophisticated instrument, is worn by the worker to measure noise levels continuously throughout the shift. Dosimeters allow firms to make a more accurate determination of the level of noise workers are actually exposed to.

Hearing Protection Devices
The two most common types of hearing protection devices used in the workplace are ear muffs and ear plugs. Most ear muffs look like normal stereo headphones and are available in a variety of sizes and styles. Comfort and mobility are two important ergonomic factors to consider when making a selection.

Ear plugs also come in a number of styles: mouldable, non-mouldable, with cord, washable and reusable being the most common options. Ear plugs can be custom moulded to the wearer’s ear canal. While this option generally provides better noise protection and long term comfort, the cost is high and prohibitive for most industrial operations.

For many wearers, ear plugs offer greater comfort and mobility than ear muffs, and are generally safe. Ear plugs can, however, cause health problems such as pain if they are inserted to deeply, and earwax build-up after prolonged use.

Hearing loss is a serious medical condition that can seriously impact your life. It is important to be proactive and make sure you look after your ears – you only have one pair!

Visit L&A Safety in Milnerton or Vredenburg or visit their website today and choose from a wide variety of safety wear and equipment!