Table 2:

Ratio of chemical concentrations in the middle of chamber to the outlet at 25 °C

Temperature (°C)	Value	Styrene	2-methyl-2-cyclopenten-1-one	Naphthalene	Triacetin	Nicotine
20	Average	1.13	1.30	1.28	1.34	1.48
	Stand. Dev.	0.12	0.13	0.22	0.37	0.55
	Count	6	9	10	10	12
25	Average	0.98	1.07	1.01	1.08	1.24
	Stand. Dev.	0.19	0.20	0.15	0.20	0.31
	Count	31	45	55	72	78
30	Average	0.88	0.85	0.94	0.90	0.86
	Stand. Dev.	0.18	0.12	0.20	0.18	0.20
	Count	13	8	10	14	17