Stability of BSA to PARI nebulizationA PARI eFlow chamber was sealed with Parafilm at the air inlet and a 5 ml pipette tip was attached to the air outlet to allow the aerosol to condense and collect into a 15 ml centrifuge tube. A 6 mg/ml solution of BSA (5 ml) was then nebulized over 10 min, and aliquots of the nebulized condensate collected at times 5 and 10 min. Control samples of non-denatured BSA (0% denaturation) were taken from the BSA solution prior to nebulization, while fully denatured BSA (100% denaturation) was generated by heating the albumin solution at 70°C