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Idiomas disponibles
SAFETY LISTENING GUIDANCE
WARNING: LISTENING TO AUDIO AT EXCESSIVE VOLUMES CAN
CAUSE PERMANENT HEARING DAMAGE. USE AS LOW A VOLUME
AS POSSIBLE.
Over exposure to excessive sound levels can damage your ears resulting
in permanent noise-induced hearing loss (NIHL). Please use the following
guidelines established by the Occupational Safety Health Administration
(OSHA) on maximum time exposure to sound pressure levels before
hearing damage occurs.
RISK OF WINDOWS BREAKING
140 dB PEAK EXPOSURE LIMIT
137dB PEAK UPPER EXPOSURE ACTION
135 dB PEAK LOWER EXPOSURE ACTION
(RISK OF PERMANENT HEARING DAMAGE - PEAK)
85 dB UPPER EXPOSURE ACTION
80 dB LOWER EXPOSURE ACTION
(RISK OF PERMANENT HEARING DAMAGE - CONTINUOUS)
LISTENING DURATION GUIDANCE
120dB
Avoid or take reduction precautions
115dB
15 minutes
110dB
30 minutes
105dB
1 hour
100dB
2 hours
95dB
4 hours
90dB
8 hours (level dependant)
RISKS/ACTIONS
SPL(dB)
190
180
170
160
150
140
130
120
110
100
90
87dB EXPOSURE LIMIT
80
70
60
50
40
30
20
10
0
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RELATIVE LEVEL
THEORETICAL LIMIT IN AIR
SPACE SHUTTLE LAUNCH
DANGER
CANON FIRING
JET ENGINE
EMERGENCY SIREN
LOUD CONCERT ROCK/ELECTRONIC
137.5 dB = PAIN THRESHOLD (AVERAGE)
CYMBAL STRIKES / HIGH HATS
FULL SYMPHONY ORCHESTRA
RISK
JACK HAMMER AT 1m
BUSY ROAD TRAFFIC
PERSONAL AUDIO SYSTEMS
HOME THEATRE / TV
NORMAL OFFICE
QUIET OFFICE
SAFE
QUIET RESIDENTIAL
RECORDING STUDIO
LEAVES RUSTLING
CALM BREATHING
AUDITORY THRESHOLD
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