Filtration efficiency of a cigarette filter with X- or Y-shaped fibers

Abstract

Nicotine is harmful to the health of smokers and the inhalation of second-hand smoke is more harmful. A high efficiency of nicotine filtration for a cigarette fil-ter is much needed. This paper suggests a formulation to predict filtration effi-ciency of a filter with X- or Y-shaped fibers. Main effects affecting the efficiency are elucidated using a fractal modification of the Darcy's law.