A decibel (dB) is a unit used to measure how loud a sound is (intensity).
For example, a whisper usually measures about 15 dB to 30 dB, a vacuum cleaner about 75 dB, and a motorcycle about 100 dB. Any sound over 85 dB is considered harmful.
Primary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency Medicine
Specialist Medical ReviewerCharles M. Myer, III, MD - Otolaryngology
Current as ofNovember 14, 2014
WebMD Medical Reference from Healthwise