Information About Hearing

How Loud Is Too Loud?

The loudness of sound is measured in decibels (dB).  The general rule of thumb is that if you cannot carry on a conversation at a normal voice level, you should be using ear protection.
Some common sound levels are:
 
20 dB
Ticking Watch
 
30 dB
Quiet Whisper
 
40 dB
Refrigerator hum
 
50 dB
Rainfall
Normal Conversation
60 dB
Sewing Machine
 
70 dB
Washing Machine
 
80 dB
Alarm Clock (at 2 ft)
 
85 dB
Noisy Traffic
 
95 dB
MRI
 
100 dB
Blow dryer
 
105 dB
Power Mower
Chain Saw
110 dB
Screaming Child
 
120 dB
Rock Concert
Thunder Clap
130 dB
Jackhammer
Jet Plane