Patent ID: 8905042

Claim:
A method of manufacturing a cigarette, comprising: producing an activated carbon sorbent by heating a porous carbon material in an oxygen-containing environment under conditions effective to enhance the capability of the carbon material to remove nitric oxide from mainstream tobacco smoke by sorption; placing a paper wrapper around a tobacco column to form a tobacco rod; and attaching a cigarette filter comprising the activated carbon sorbent to the tobacco rod to form the cigarette; wherein the activated carbon sorbent contains pores having a majority of a pore size of from about 5 Å to about 10 Å and has a BET surface area of from about 1000 m 2 /g to about 2,000 m 2 /g, and wherein the activated carbon sorbent further contains pores having a D-R micropore volume of from 0.14 cm 3 /g to 0.61 cm 3 /g in a pore size range of from 10 Å to 20 Å.