Background: Short-term, indoor exposure to environmental tobacco smoke (ETS) is still highly prevalent; however, little is known about the acute lung response in adult asthma.
Objectives: We investigated whether acute, experimental ETS exposure influences symptoms, lung function, and inflammatory parameters.
Methods: Human subjects with asthma (n = 23) were exposed for 180 min to either room air or ETS at 250, 450, or 850 µg/m3.