What volume is too high to listen to music?

On an iPhone which of the bars is too high? Or is half too high? I like to listen to it on 3 quarters, but I know it's very high.

Anything over 85 dB SPL at the ear
as measured by a sound level meter.

The volume setting numbers on things are for user reference only,
as they don't tell anyone how loud the sound reaching the ear will be.

  • What is the best volume to listen to music on iPhone with apple earbuds? I have a bad habit if listening to loud music. I want to stop that to save my hearing. So I want to know what is a volume that's loud enough but will not kill my hearing.
  • Meetme, request rates are too high? So I just made a meetme yesterday and I downloaded the iPhone version for my iPad, but recently it has started saying my request rates are too high. I've uninstalled it and reinstalled it and restarted ect. Any ideas?
  • Why does my iPhone 6s make a high pitched, almost smoke alarm sound when I listen to music? The first time happened when I walked onto the bus. I didn't have my headphones in and my phone dtsrted making a smoke alarm-type sound. The second time also happened on the but when I was listening to music without headphones and everybody told me to turn it off and it went away when I paused my music. Keep in mind there were 2 different songs. The last one that happened was just now when I had headphones in. I fear my phOne may be tapped.
  • How too take high resolution pictures? How to take a picture like this. but not using an expensive camera, i was thinking more along the lines of a disposable camera or a cheap one? also are there any editing apps for iPhone or online i could use to make this effect? please help! I really want good outcomes like this picture! thank you. The photo… Sorry i didn't know how to hyperlink the photo, if you copy and paste it, it still works!