Since the extent of smoke entrapment was found to be sensitive to the pressure drops along different parts of the cigarette rod, any pressure barriers present downstream will affect the extend of the entrapment
Reference: A translational investigation targeting stress-reactivity and prefrontal cognitive control with guanfacine for smoking cessation by Sherry A McKee, Marc N Potenza, Hedy Kober, Mehmet Sofuoglu, Amy FT Arnsten, Marina R Picciotto, Andrea H Weinberger, Rebecca Ashare and Rajita Sinha, 16 December 2014, Journal of Psychopharmacology
Histone deacetylases and their inhibitors: new implications for asthma and chronic respiratory conditions
it is a masterpiece of balance, sensuality, and intent