Abstract: The orthogonal test,which dealt with different cigarette Paper,tipping paper,wrapping paper and filter,was designed and applied in situ.Test was to study the effects of the above factors on the degree of ventilation and filtration efficiency of the cigarette with 24 mm filter rod.The result indicates that the air permeability of tipping paper,wrapping paper,cigarette paper and the pressure drop of filter rod are the most prominent and important factors affecting the degree of ventilation and fil...

Key words: degree of ventilation； filtration efficiency； Cigarette materials； orthogonal test；