Decibels (dB)

A decibel (dB) is a unit used to measure how loud a sound is (intensity). For example, a whisper usually measures about 15 to 30 dB, a vacuum cleaner about 75 dB, and a motorcycle about 100 dB. Any sound over 85 dB is considered harmful.

Last Updated: April 22, 2009

Author: Monica Rhodes

Medical Review: Kathleen Romito, MD - Family Medicine & Sarah Marshall, MD - Family Medicine & Donald R. Mintz, MD - Otolaryngology

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