PROBLEM TO BE SOLVED: To provide a smoking agent and a smoking device that avoid uneven control effect when used in a space with a low ceiling, and also cause little contamination.SOLUTION: A smoking agent comprises (A) component: an organic foaming agent, and (B) component: a drug, the (A) component comprises a tetrazole gas generating agent, and a mass ratio represented by (the tetrazole gas generating agent/(A) component) is 0.05-0.8.SELECTED DRAWING: Figure 1