Respiratory mechanics parameters in saline or DEP exposed mice during 90 days. (A) tissue elastance (Htis), (B) tissue damping (Gtis) and (C) airway resistance (Raw). The central line defines the median, the borders above and below the shaded areas represent the 25% and 75% percentiles, respectively, and the error bars represent the 5% and 95% percentiles. The grey box represents saline group and stripped box represent DEP group. (D) Respiratory mechanics after methacholine challenge in saline (white circle) or DEP (black circle) exposed mice, where Raw means airway resistance. There were not statistically difference significant between groups.