Klipsch OVER-EAR Owner's Manual page 5

aircraft (including, but not limited to:
altitude, temperature, noise conditions,
unpressurized aircraft, etc.) resulting
in possible interference to critical
communications.
The Occupational Safety Health
Administration (OSHA) has issued
headphone usage recommendations
for maximum daily exposure and sound
pressure levels (measured in decibels (dB)).
A decibel is a unit of measure of sound, and
decibels increase exponentially as sound
gets louder. For example, conversational
speech is typically around 60dB, and a rock
concert in a stadium is often about 110dB.
OSHA GUIDELINES FOR NOISE EXPOSURE
LIMITS
Sound Recommended
Pressure Maximum Exposure
Level
90dB
92dB
95dB
97dB
100dB
102dB 1.5 Hours
105dB
110dB 30 Minutes
115dB 15 Minutes or less
Avoid as damage may
120dB
Per Day
8 Hours
6 Hours
4 Hours
3 Hours
2 Hours
1 Hours
occur