Fig. 3From: Rapid changes in mucociliary transport in the tracheal epithelium caused by unconditioned room air or nebulized hypertonic saline and mannitol are not determined by frequency of beating ciliaAn example of the effect of intermittent exposure of room air on the cilia beat frequency (CBF) and mucus transport velocity (MTV) from a video-microscopy recording shown in Additional file 1: Video S1. The gray region represents room air and white regions represent air at body temperature and fully saturated with water vaporBack to article page