what is the lightest marlboro cigarette are cigarettes for health? They don't exist! Comparative tasting of Marlboro cigarettes.

Inter-Laboratory Reproducibility and Interchangeability of 3R4F and 1R6F Reference Cigarettes in Mainstream Smoke Chemical Analysis and In Vitro Toxicity Assays Abstract A new reference cigarette, 1R6F, produced by the Kentucky Tobacco Research and Development Center, has been manufactured as a substitute for the 3R4F reference cigarette because of a depletion of 3R4F stock

Small size and high efficiency

"So not only do we have a high prevalence rate of people using tobacco products, we have a very dense community where tobacco is readily available," Minor said

Can I Get Accurately Sized Empty Cigarette Boxes?

A Veteran of Smokedom , The Smoker's Guide , Chapter IV