. 2020 Jun 29;23(3):600–604. doi: 10.1093/ntr/ntaa114

Table 1.

Mean (SEM) of Quantified Compounds in Vanilla- (Van.), Cherry- (Ch.), and Cinnamon-Flavored (Cin.) Shisha, Water-Filtered Mainstream Smoke, and Unfiltered Mainstream Smoke

Compound	Shisha tobacco content; N = 5 (mg/g shisha)	In water-filtered mainstream smoke; N = 3 (µg/puff)	In unfiltered mainstream smoke; N = 3 (µg/puff)	“Water filtration reduction factor”
Vanillin (Van.)	4.9 (0.43)	55 (24)	209 (18)	3.8
Benzaldehyde (Ch.)	1.1 (0.11)	9.8 (0.86)	101 (5.8)	10
Eugenol (Cin.)	1.3 (0.18)^a	6.1^b	25^b	4.1
Nicotine (Van.)	1.4 (0.43)	14 (5.7)	44 (3.7)	3.1
Nicotine (Ch.)	0.65 (0.14)	12 (2.1)	23 (3.8)	1.8
Nicotine (Cin.)	1.8 (0.12)^a	43^b	61^b	1.4

^a N = 2.

^b N = 1.