Figure 1From: Fractionated breath condensate sampling: H2O2 concentrations of the alveolar fraction may be related to asthma control in childrenPaired exhaled H 2 0 2 concentrations (● = airway fraction, ○ = alveolar fraction) of asthmatic children and controls. The exhaled H2O2 concentration was significantly higher in the airway fraction than in the alveolar fraction comparing each single pair (p = 0.003).Back to article page