Dose response of each respective chemical as measured by LDH release presented as % Change in Cytotoxicity compared to the filtered air control and 100% lysed control. BEAS-2B and pHBEC cells exposed to chemicals A. Acrolein, B. 1,3-Butadiene, C. Acetaldehyde, D. Formaldehyde, E. 1-Bromopropane, F. Dichloromethane, G. Trichloroethylene, H. Carbon Tetrachloride. Mean±SEM, n=3, *p≤0.05.