Nasal hair ornose hair is thehair in thenostril. Adulthuman noses have hairs, which serve as a crudeair filter to stop foreign particles from entering thenasal cavity, as well as to help collect moisture.[1] Nasal hair is different from thecilia of theciliated lining of thenasal cavity. These cilia aremicrotubule-based structures that are found in therespiratory tract, involved in themucociliary clearance mechanism.
A 2011 study indicated that increased nasal hair density decreases the development ofasthma in those who haveallergic rhinitis, possibly due to an increased trapping capacity to filter outpollen and other commonallergens.[2]
A number of devices have been sold to trim nasal hair, including miniature rotary clippers and attachments for electric shavers. The trimmers shorten the hair to such lengths that they do not appear outside of the nasal passage. A pair of tweezers may also be used to facilitate the removal of such hairs. Other means are in effect such aswaxing, laser hair removal, and electrolysis.