What volume setting is best to prevent hearing loss but still enjoy my music?

I'm posting on Reddit because Google won't tell me the volume range for my headphones and because I'm tired of having to refine every search like 50 times to get the answer I want. Anyway, I'm using a JBL TUNE710BT and for since I got them I've used pretty loud volume (70% - 80%), but lately I've noticed myself going as far as 90%, which leads me to believe I might be experiencing hearing loss. So what's a good level to prevent that? For the record, I'm on (the god forsaken) windows 11, for context.