Influence of different filtration efficiency of new design split dual filter
Paper filters were extensively used a few decades ago. Filters containing a paper segment are more environment-friendly due to much faster biodegradation compared to cellulose acetate tow filters. Today there are crepe papers available suitable for filter production with different physical and chemical properties. Besides the environmental aspect, paper filters can remove certain amounts of harmful components from tobacco smoke.
In this study new design split dual filters were used with different filtration media: paper, charcoal paper, cellulose acetate and charcoal with higher carbon tetrachloride (CTC) activity. The main focus was to study the effect on benzene, toluene, carbon monoxide and nicotine.
Cigarettes with the above described filters were prepared using CORESTA Monitor 6 (CM6) tobacco columns without tipping ventilation. Smoking was done according to ISO using a Borgwaldt RM20D smoking machine. Compound analyses were performed using Agilent 5973N GC-MS equipment according to CORESTA Recommended Methods (CRM) Nos. 5, 7 and 70.
A comparative analysis of new design filters was performed aimed at identifying the filtration efficiency of new design filters.