It is widely regarded that listening to anything between 60 and 85 decibels is as loud as you should go. For reference, a concert can get as loud as 120 db. You do not want to listen to super loud music or tones for long periods of time as this can lead to hearing damage including tinnitus. When listening to specific tone frequencies, you are hearing a single note for a short amount of time. We recommend only using specific tone listening in active meditation or short healing sessions.
Casually listening to Solfeggio Frequency tuned music is a great way to incorporate those frequencies in your every-day life.