Moto Safe

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 Hearing Protection

Noise volume is expressed in decibels, abbreviated to dB. The higher the number of decibels, the more noise, and in turn the greater the risk of (serious) hearing damage. Please note according to the European law in a working environment with a noise volume starting at 80 dB, employers are required by law to offer their employees hearing protection.

But there is another factor, namely the period during which the hearing is exposed to noise. The noise volume we can withstand ‘without damage’ for a few minutes represents a significant risk of hearing damage if the period of exposure is longer.

We all know that we should retire quickly and protect our ears if we see the fuse of a banger being lit … but many of us take far greater risks with our hearing on a day-to-day basis, than on that one firework evening a year.

 

Noise deafness is for life

Hearing is a refined and susceptible sense. Tens of thousands of minute hair cells pass on noise to the brain, through vibrations. Too much noise – and hence too many vibrations – damage these hair cells forever, because they will never grow back. Hearing damage of this kind is therefore definitive.

Common noises in decibels …

What is a decibel? A few examples…

 

Below you see the noise volumes and how long we can bear them.
Whispering
Talking
Street noise
Printer
Lawn mower
Hand saw
Busy pub
Forklift truck
Motorway traffic
Angle grinder
Hand drill
Snoring
Circular saw
Wind noise at 100 km/h
Chainsaw
High pressure cleaner
Walkman
Concert
MP3 player at maximum volume
25
60
70
75
85
88
90
90
96
98
99
75 – 110
102
102 (under the helmet!)
105
108
80 – 110
90 – 115
120

The time factor
Some noises can damage our hearing irreparably in minutes or even seconds. Other noises we can withstand for longer, but are nonetheless just as destructive. Below you see the noise volumes and how long we can bear them.
80 dB
83 dB
86 dB
89 dB
92 dB
95 dB
98 dB
101 dB
104 dB
107 dB
8 hours
4 hours
2 hours
1 hours
½ hours
¼ hours
7 minutes
3,5 minutes
1,5 minutes
none
If you then look at the list above of ‘common noises’, you can draw your own conclusions …