Beats by Dr. Dre Solo HD Guide de l'utilisateur télécharger pdf (Page 4)

SOUND NOISE LEVEL

(dB)

EFFECT

Whisper 30 Very quiet

Quiet Ofce 50-60 Comfortable hearing levels

are under60dB

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

Power Saw,

Drill/Jackhammer

110 Regular exposure to sound over

100dB of more than 1minute risks

permanent hearing loss

Rock Concert (varies) 110 -14 0 Threshold of pain begins

around 125dB

* Chart information from http://www.nidcd.nih.gov/health/education/teachers/pages/common_sounds.aspx

English

This decibel (dB) table compares some common sounds and shows how they

rank in potential harm to hearing.

1 2 3 4 5 6 7 8 9 ... 27 28

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Beats by Dr. Dre Solo HD Guide de l'utilisateur Page 4