Is nose hair good for breathing?

Some MM likes to shave off their eyebrows, and then use laser to tattoo thin "eyebrows", but this is likely to let some bacteria or dust enter their eyes unconsciously. There are many seemingly useless hairs in the human body, such as eyebrows, nose hair or foot hair. In fact, these seemingly useless hairs have unexpected uses.

Like eyebrows, it can block dust or bacteria attached to hair and prevent them from entering our eyes and affecting our eye health. Nose hair and foot hair also act as protectors. Nose hair can prevent dust in the air from entering the respiratory tract, while foot hair can conduct heat in addition to dust prevention, and body heat can also be led out of the body through foot hair.