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. Author manuscript; available in PMC: 2019 Aug 27.
Published in final edited form as: Aerosol Sci Technol. 2018 Aug 23;52(11):1219–1232. doi: 10.1080/02786826.2018.1500013

Figure 3.

Figure 3.

Aldehyde levels generated from Set II e-liquids or from PG and VG. To generate aerosols from e-liquids e-liquids were loaded into a refillable, clear tank (≈0.5 mL) atomizer with a coil resistance of 1.8-Ohm (Mistic Bridge) coupled with a rechargeable bluPLUS+™ (3.7 V) battery (7.6 W; where puff volume = 91 mL, puff duration = 4 s, frequency = 2 puff/min). Values are means±SD (n=3). Abbreviations: PG, 100% propylene glycol; VG, 100% vegetable glycerin. *P<0.05: Formaldehyde: Menthol=Southern Ice>Mocha Café=PG=VG; Acetaldehyde: No statistically siginificant differences; Acetone: Mocha Café=Southern Ice≥Menthol=PG=VG; Acrolein: Southern Ice>Menthol=Mocha Café=VG>PG.