An inhalator includes a housing with first and second compartments, and a substance. The second second compartment has an air entry port, the inhalator has a first end proximal to the first compartment and second end proximal to the second compartment, and the inhalation part is at the second end. The first compartment stores a substance and has in an inoperative state of the inhalator sealing bodies to define a sealed chamber for containing a substance. The bodies are movable together with the substance from the first compartment into the second compartment to define an inoperative state of the inhalator. Air enters through the air entry port and takes up, such as by evaporation, the substance contained in the second compartment. A release device moves the bodies into the second compartment and allows the air to flow to the air entry port in the operative state.
