Fig 1. ENDS schematic and temperature measurement set up.

(A) schematic of recent generation e-cigarette (blue arrows indicate air flow direction); (B) 3D drawing of internal atomizer with visible coiled wire heating element and central air flow channel. (C) Two thermocouples (TC) cemented to the top and middle sections of heating coil for measuring temperature; (D) Axisymmetric schematic view of typical atomizer configuration showing approximate locations of attached thermocouples. (E) A constructed fixture for measuring aerosol smoke temperature. The fixture holds the thermocouple in place in the center of the flow path.