Arica, Boris, Bruno and Roman usually consume three cigarettes per day. Henrik consumes four per day. Malik, Esma and Adem consume two per day.
Failing to provide them cigarettes results in a mood penalty. A sad smoker will make negative remarks like "Damn, where are my cigarettes?" The penalty can be avoided by scavenging for the different types of cigaretts, buying them from a Trader, or by creating them in the Shelter itself.