Table 2.

Smoke and THS 2.2/CHTP 1.2 aerosol characteristics.

	3R4F	THS 2.2	CHTP 1.2
MMAD [μm]	0.81	0.71	0.93
GSD	1.31	1.51	1.33
Mainstream ultra-fine combustion-related carbon-based solid particles [11 puffs]2	6 × 1011	ND	ND

¹Schaller et al. [56], measurements for 3R4F and THS 2.2 FR1; ²THS 2.2, Pratte et al. [57]; CHTP 1.2, unpublished data. THS, Tobacco Heating System; CHTP, Carbon Heated Tobacco Product; MMAD, mass median aerodynamic diameter; GSD, geometric standard deviation; ND, not detected.