Sound intensity in decibels Time for safe listening per week (7 days) Example of type of sound at the specified intensity10dB Unlimited Normal breathing 30dB Unlimited Soft whispering 40dB Unlimited Library 60dB Unlimited Normal conversation 80dB 40 hours Doorbell85dB 12h 30 mins Heavy traffic (inside car) 90dB 4 hours Shouted conversation95dB 1h 15 mins Motorcycle100dB 20 mins Hair dryer105dB 8 mins Car horn at 5 meters 110dB 2.5 mins Shouting in the ear120dB 12 sec Standing near a siren130dB <1 sec Jackhammer140dB 0 sec Airplane taking off150dB 0 sec Firecrackers
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如何检查和监控声级？
How can I check and monitorsound levels?
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大多数人都不知道我们周围或耳机中音量强度。
Most of us don’t know how high the volume is in decibels (dB) either around us or in our headphones.
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检查环境中的声级有许多应用程序，例如NIOSH-SLM应用程序。
Many apps are available that can be used to check the sound level in your environment, e.g., the NIOSH-SLM app.
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您可以下载这个或其他类似应用程序查看听到的分贝水平。
You can download this or other similar apps and see the decibels you are receiving.
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还可以将应用程序下载到许多智能手机上。
Apps can also be downloaded on many smartphones that can tell you the sound level of the music you are listening to over your earphones/headphones.
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这些应用程序可以显示通过耳机收听音乐的音量。
Some smartphones come with built-in safe listening apps that monitor the sound level and the time you spend listening to estimate your risk of hearing damage.
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一些智能手机带有内置的安全听力应用程序，可以监控声级和收听时间，以估算您的听力损伤风险。
You should use these apps to practice safe listening.
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我怎么知道一个地方是否太吵了，会不会伤害我的耳朵？
How do I know if a place is too loud and can hurt my ears?
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您可以使用免费应用程序检查周围的声音水平。
You can use free apps to check the sound levels around you.