4
ENGLISH
5
ENGLISH
SoUND
NoISE LEVEL (db)
EFFECT
Whisper
30
Very quiet
Quiet Office
50-60
Comfortable hearing levels
are under 60 dB
Vacuum Cleaner, Hair
Dryer
70
Intrusive; interferes with
telephone conversations
Food Blender
85-90
85 dB is the level at which
hearing damage (8 hrs.) begins
Garbage Truck, Cement
Mixer
100
No more than 15 minutes
of
unprotected exposure
recommended for sounds
between 90-100 dB
SoUND
NoISE LEVEL (db)
EFFECT
Power Saw, Drill/
Jackhammer
110
Regular exposure to sound over
100 dB of more than 1 minute
risks permanent hearing loss
Rock Concerts (varies)
110-140
Threshold of pain begins around
125dB
*Chart information obtained from http://www.nidcd.nih.gov/health/education/teachers/common_sounds.asp
“…. a typical person can safely listen to an iPod for 4.6 hours per day at 70% volume.”
“….knowing the levels one is listening to music at, and for how long is extremely important.”
From http://www.cbc.ca/health/story/2006/10/19/music-earphones.html
Get the most out of your equipment and enjoy great audio performance even at safe levels.
Our headphones will allow you to hear more details at lower volume levels than ever before.
