Healthy individuals Study #1 Bencova A. et al., The impact of hypertonic saline inhalation on mucociliary clearance and nasal nitric oxide. J Physiol Pharmacol. 2012 Jun;63(3):309-13. 14Study #2 Study #2 Lee S.H. et al., Effect of Hypertonic Seawater (Sinomarin) on Mucociliary Clearance in Normal Subjects. J Rhinol 10 (1,2), 2003 Adults