In the above system, l denotes the per capita influx rate of people in smoking age and mortality rate, which are assumed to be identical. The constant b is effective contact rate, which is the product of the average number of influential contacts per unit time for a non-smoker and the probability of becoming smoker following a contact with a smoker. The media campaigns disseminate awareness among smokers at a rate c. The constants r and q represent the per capita relapse rate due to nicotine urge and peer influence, respectively. Moreover, / and /0 are constants denoting rate of implementing and fading of media campaigns, respectively.