Beats Wireless - Page 5

English
This decibel (dB) table compares some common sounds and shows how they
rank in potential harm to hearing.
SOUND
NOISE LEVEL
(dB)
Whisper
30
Very
quiet
Quiet Office
50-60 Comfortable hearing levels
ore under 60dB
Vacuum Cleaner,
70 Intrusive; interferes with
Hair Dryer
telephone conversations
85 dB is the level at which hearing
damage (8 hrs.) begins
Garbage Truck,
No more than 15 minutes
Cement Mixer
of unprotected exposure
recommended for sounds between
90-100dB
Power Sow,
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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