Decibels is a measure of sound intensity, the following are the decibel values of common sounds in everyday environments, and the degree of hearing damage caused by different noises.
Firecrackers sounded and shotguns opened fire
140 aircraft take off
120 ambulance sirens, thunder
110 hand drill jobs, rock concerts, symphony orchestra performances (exposure to a sound environment of 110 decibels and above for more than 1 minute is at risk of permanent hearing impairment. ）
105MP3 player plays at maximum volume (If there is no additional hearing protection, it is recommended not to exceed 15 minutes in a sound environment of 100 decibels and above.) ）
95 metro platform
85 city traffic, school cafeterias (Long-term exposure to 85 decibels and above sound environment may lead to chronic hearing impairment. ）
75 dishwasher
70 hair dryer, vacuum cleaner
60 Normal Conversations
40 refrigerator start sounds
30 whispers
0 The minimum sound that a person with normal hearing can usually hear
Source: Reference News Network