January 1973

Clearance of Inhaled Particles From the Human Nose

Author Affiliations

Baltimore; Aarhus, Denmark

From the School of Hygiene and Public Health, Johns Hopkins University, Baltimore (Dr. Proctor), and Institute of Hygiene, University of Aarhus, Aarhus, Denmark (Dr. Andersen and Mr. Lundqvist).

Arch Intern Med. 1973;131(1):132-139. doi:10.1001/archinte.1973.00320070128014

The anatomical form of the nasal passage and the resultant air flow through it assures conditioning of inspired air, effective filtration of inhaled particles, and absorption of foreign gases. Nasal mucus flow transports deposited materials through the nose at a rate of about 5 mm/min; but in some normal subjects, rates are far lower than this. Nasal mucociliary transport is unaffected by the relative humidity of the inspired air.