An inhalator (1) comprising a housing with at least a first compartment (30) and a second compartment (40), and including one or more substances, said second compartment (40) including at least one air entry port (50), said inhalator (1) having a first end (21) proximal to said first compartment (30) and a second end (22) proximal to said second compartment (40), an halation part (27) being at said second end (22), said first compartment (30) being for storing at least one substance and including in an inoperative state of said inhalator (1) a plurality of sealing bodies (60) arranged in a neighboring relationship, each pair of neighboring bodies (60) defining at least in part a sealed chamber (62) for containing a substance, said bodies (60) being movable together with said at least one substance from said first compartment (30) into said second compartment (40) to define an operative state of said inhalator (1) wherein said one or more substances are contained in said second compartment (40), whereby air entering through said air entry port (50) and taking up, such as by evaporation, said at least one substance when contained in said second compartment (40) may be inhaled through said inhalation part (27), characterized in a release device in said first compartment (30), said release device being for moving said bodies (60) into said second compartment and allowing said air to flow to said air entry port (50) in said operative state.