Fig. 1.
Activation of the pump initiates pressure changes within the e-cigarette which automatically activates the battery. A current is subsequently delivered to the heating element within the cartomizer and the liquid housed within is vaporized. Air and vapor flow into the glass bubbler (impinger) containing the DCFH solution through tubing that is coupled to the cartomizer. The air and vapor/aerosol finally passes through the DCFH solution, through the pump, and exits the apparatus via additional tubing.