Safe Noise Limit for 2 Hours Exposure?

Hello All!

I know there are many posts about this. I just wanted to ask you all, in a rational, empirical and knowledge based, what do you think are the real decibel noise limits at which we should start to protect our ears.

I am considering a 2 hour time. Thank you all!!!

 

I think the National Safety Standard is 84db but I would go by 75db if around the sound a long time.
My view..
Love glynis

 

What's safe for normal person very well might not be safe for a person who developed tinnitus after noise exposure. Guidelines are good as a starting point, but you'll need to judge the situation based on your own experience. If you're getting not comfortable, you should leave asap no matter what.

 

If I were to be exposed to this noise for over 2 hours, I would protect my ears if I had to face any noise louder than a slightly raised human voice.

 

I would say about 90dB Leq for steady-state noise ?

Unfortunately one can't always plan for (and protect one's ears) for sudden impulsive noises

 

Actually the safety standard is 91 dB for that amount of time, now I would not advise this to anyone with hearing problems or T.

 

80-85 is no problem for 2 hours. The louder restaurants can be in this range and I've been there for 2-3 hours without any impact on my tinnitus, nor is this a dangerous level to damage your ears. Just to be sure I do take some NAC though in these cases as it has shown to protect the ear.

In fact 85-90 should be fine as well but better don't take unnecessary risks

 

Sorry - what is NAC.....

 

Absolutely Right !!

 

The OSHA "safe noise levels" that everyone goes by are very high in my opinion. It's based on outdated data for permanent threshold shifts in the majority of the population. More recent research has shown that you can have hearing damage long before seeing a permanent threshold shift.

 

It depends on the frequencies! Try to stand near to 60 db high frequencies and you will say me how it is

 

Do you have any studies of that?