Unlike mouth-to-lung devices, which require a tighter airflow and smaller coils, direct lung devices focus on maximising vapour production and flavour intensity
The authors have been clear about this and report these as limitations, said Jamie Hartmann-Boyce, an assistant professor of Health Policy and Management at the University of Massachusetts, Amherst in the US who was not involved in the study
It also has cumin in it, a note I normally find offensive in most perfumes, but I have to give kudos to the perfumer, Antoine Maisondieu, for not going overboard
The short answer is no, cigarettes do not have an expiration date
But the Davidoff portfolio varies across the world, which is mainly due to local consumer preferences and legislative restrictions