Patent ID: 7025067

Claim:
A filter for a tobacco smoke inhaling/generating/producing device, the filter having three sections placed longitudinally one after another, comprising: a first section comprising cellulose acetate fiber acting as a mouth piece; a second section comprising requisite amounts of specific mesh sizes of activated charcoal selected from the group consisting of charcoal particles having mesh sizes of BS 44/52, BS 52/60, BS 60/72, BS 72/85, and any combinations thereof for effectively reducing p-benzosemiquinone, a highly reactive major harmful oxidant from the mainstream of said tobacco smoke; and a third section comprising cellulose acetate fiber located closer to a tobacco portion, also acting as a barrier between the activated charcoal and tobacco portion, wherein the activated charcoal is selected from the group consisting of 0.2 g of mesh size BS 44/52 and 0.1 p of mesh size BS 52/60, 0.2 g of mesh size BS 44/52 and 0.1 g of mesh size BS 60/72, 0.1 g of mesh size BS 44/52 and 0.1 g of mesh size BS 72/85, 0.2 g of mesh size BS 44/52 and 0.1 g of mesh size BS 72/85, 0.15 g of mesh size BS 44/52 and 0.1 g of mesh size BS 72/85, 0.1 g of mesh size BS 52/60 and 0.1 g of mesh size BS 60/72, 0.1 g of mesh size BS 52/60 and 0.1 g of mesh size BS 72/85, 0.1 g of mesh size BS 60/72 and 0.1 g of mesh size BS 72/85, 0.1 g of mesh size BS 52/60 and 0.05 g of mesh size BS 72/85, and 0.1 g of mesh size BS 60/72 and 0.05 g of mesh size BS 72/85, and any combinations thereof.