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
Normal Conversation
60 dB
Sewing Machine
70 dB
Washing Machine
80 dB
Alarm Clock (at 2 ft)
85 dB
Noisy Traffic
95 dB
100 dB
Blow dryer
105 dB
Power Mower
Chain Saw
110 dB
Screaming Child
120 dB
Rock Concert
Thunder Clap
130 dB
Jet Plane