Patent ID: 7726364

Claim:
A method of using a device for providing a tar and nicotine barrier in a filter of a smoking article, the method comprising: providing a container of the device with a supply of viscous fluid which when placed in the filter of a smoking article forms a barrier therein which traps tar and nicotine within the filter; placing a delivery feature of the device at a predetermined location within the filter that is sufficiently remote from a free end face of the smoking article to be put in the mouth so as to prevent the user from tasting the viscous fluid; and transferring the viscous fluid from the container to the filter through an outlet of the delivery feature that is in fluid communication with the container; wherein the delivery feature comprises at least in part a single tube of significantly lesser diameter than a diameter of the smoking article; wherein the transferring of the viscous fluid is performed via lateral injection through a side wall of the filter and wherein the delivery feature is readily replaceable after a one-time use.