Danniella
not sure if your question was for me? No, I've not done any types of testing for this. It's kind of on the bottom of my "fix-it" list. LOL

I worked with kids for 23 years, drove a school bus for 17 of them. Those babies were loud! Add up to 65 kids &traffic, well, now I hear static.

But the fan does help drown it.