I beg your pardon...?
Make sure that this does not become your standard question. The human ear is very sensitive. Usually a partial hearing loss is not noticed at first. We have been used to the noise pollution in our environment for a long time and when it is particularly loud, the ear whistles for a few minutes. The ear is already recovering.
Not at all! Often a single loud bang is enough to irreparably damage the hearing!
If your work is associated with noise pollution, protect your hearing! Often the small and still quite comfortable foam plugs are enough. And for a limited time it can be the Mickey Mouse.
We are happy to advise you and can even measure the noise exposure at your workplace. By the way: Your superior must provide you with hearing protection.