Trial for Harm Reduction With Incentives & Vaping E-cigarettes

Participants in active comparator groups that include ENDS will receive 6-weeks worth of ENDS supplies.

Participants in active comparator groups will receive incentives that vary based on participant abstinence from smoking, measured by a carbon monoxide breath sample.

Participants in active comparator groups labeled No ENDS will only receive information about the comparative risk of ENDS relative to combustible cigarettes.

Participants in active comparator groups labeled NI will receive compensation for each breath sample provided throughout the study, with no variation.