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Respiratory resistance as a measurement of lung function was determined via flexiVent using a forced oscillation technique. Mice exposed to filtered air, EPFR lo or EPFR hi (n=7–8/group) were assessed for respiratory resistance while administered increasing doses of methacholine so that a dose-response could be established. Mice exposed to EPFR hi experienced a significant increase in respiratory resistance compared to mice exposed to filtered air only. *Indicates p<0.05.
