Most people do not carry around with them a dBA monitor to sample the ambient noise. So how, can you tell if noise is damaging to your hearing? What is considered to be a safe decibel level of noise? Is there graphical way to view noise?
There are a couple of ways to determine if the noise is damagingly loud.
- After you are finished with the power tool and you turn it off your ears are ringing for a while or sounds seem flat or dull.
- When talking to a person that is arm’s length away you have to raise your voice considerably, the ambient noise is damaging to your hearing.
According to the CDC that sounds below 85 dBA is not damaging when exposed to it less than eight hours. Personally I think that is too loud and will cause long term hearing loss.
The CDC in conjunction with National Institute for Occupational Safety and Health have put together an interesting graphic that depicts various dBA levels in proportion to each other.
Here is a list of the decibels (dBA) produced from various common woodworking power tools.
|
Miter saw |
102 |
|
Hand Drill (corded) |
97 |
|
Chop Saw |
106 |
|
Hammer Drill |
114 |
|
Chain saw |
109 |
|
Circular Saw |
100 |
|
Belt Sander |
94 |
|
Circular sander |
90 |
|
Router |
95 |
|
Planer |
94 |
|
Table saw |
92 |
|
Mortising tool |
90 |
Popular woodworking power tools when run under full load produce enough noise to be well above the maximum recommended decibel limit.
