Nose hair should not be too short:
Nose hair is used as the first line of defense against the entry of bacteria in the respiratory tract.
It can block some dust particles in the air from entering the lungs.
The nose hair can be trimmed for beauty or if it is too long to cause discomfort, but it is best not to be too short , This will greatly increase the dust in the air into the lungs, and then affect health.
Properly trim the nose hair to make it comfortable and beautiful.