Compositions, formulations and methods bio-balance the pH of sterile, sodium chloride inhalation and pulmonary irrigation solutions, such that the solutions are bio-similar to the homeostatic pH state of the Human Airway Surface Liquid (ASL) at about 7.4. These solutions are sterile, non-pyrogenic, additive and preservative free, and provided in sterile unit-of-use, blow-fill-seal vials. These solutions are intended for use in the induction of sputum production where sputum production is indicated, such as with Cystic Fibrosis patients and Bronchoalveolar lavage procedures. The solutions can be provided in concentrations from about 0.045% to about 10% sodium chloride in USP/Sterile water. The sodium chloride solutions are homogenous mixtures that include sterile water, sodium chloride, and sodium bicarbonate as a buffer. The solutions are provided in saline concentrations from 0.45% to 10%, for example, concentrations of 0.9%, 3%, 3.5%, 6%, and 7% with a pH of 7.4.
