Normal is about 15-20 at rest, slows down somewhat in most people when asleep. But normal is best determined on what is normal for the individual person (my awake breathrate, for example, is 8-10 breaths per minute, and trying to breathe faster than that - like when my ASV was programmed to 12bpm - causes me to hyperventilate.
Are you certain he said you have 9 apnea events per MINUTE, or per hour? AHI is usually calculated on an hourly basis.
PR bipap auto sv advanced
Fisher and Paykel flexifit 431