Decibel (Db) Table - Beats Electronics executive User Manual

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