Yes ear hair can be permanently removed.
To have your ear hair permanently removed you can go get laser hair removal which removes the ear hair permanently so that the ear hair does not grow back.
Having ear hair permanently removed through laser hair removal takes around 4 to 8 sessions of the laser hair removal but once you take the last laser hair removal session for the ear hair removal it becomes permanent and you no longer need to have the ear hair removed.
Laser ear hair removal is expensive though but can be worth it if you can afford it.
The average cost of laser ear hair removal is between $400.00 to $800.00 per session.