Beats Electronics urbeats - Page 4

English
This decibel (dB) table compares some common sounds and shows how they
rank in potential harm to hearing.
SOUND
NOISE LEVEL
EFFECT
(dB)
Whisper
30
Very
quiet
Quiet Office
50-60
Comfortable hearing levels
are under 60dB
Vacuum Cleaner, 70
Intrusive; interferes with
Hair Dryer
telephone conversations
Food Blender
85-90
85 dB
is the level at which hearing
damage (8 hrs.) begins
Garbage Truck,
100
No more than 15 minutes
Cement Mixer
of unprotected exposure
recommended for sounds between
90-100 dB
Power Saw,
110
Regular exposure to sound over
Drill/Jackhammer
100 dB of more than 1 minute risks
permanent hearing loss
Rock
Concert (varies) 110-140
Threshold of pain begins
around 125 dB
*Chart information from http://www.nidcd.nih.gov/health/education/teachers/pages/common_sounds.aspx
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