Participants
Nineteen healthy volunteers were recruited, 4 of which failed screening
(see consort, Figure2) leaving 15 completing the study. There were 8
males in the study, the median age was 29 years (IQR 25-44 years), mean
BMI was 24.6 kg/m2 (SD±3.0). Median FEV1 percent
predicted was 96% (IQR 89-117). All the volunteers were never smokers.