A, cigarette robot (for tobacco cigarette exposure), B, e-cigarette with puff triggering solenoid, C, smoke/vape pump, D, Air Pump, E, air mixing chamber, F, whole-body exposure chamber, G, in-chamber environmental sensors, H, smoke/vape withdrawal pump, I, bubbling scrubber for particles collection, J, particulate collection filter, K, Optical particulate counter/sizer, L, PLC/Computerized Control Unit.