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Carbon Filters: Eliminating Odors Cigarette smoke often leaves behind unpleasant odors

Years of smoking in a space creates deep penetration of odour compounds that require intensive treatment to remove

Methods Mean concentrations and the area under the curve of PM 10 , PM 2.5 and PM 1 generated by Natural American Spirit cigarettes without additives and the 3R4F standard research cigarette (University of Kentucky, USA) were measured, analyzed and compared with each other