An emanator device for emitting an active agent into the air comprises a container (10) for the active agent, which container (10) is adapted to supply the active agent to a dispersing section (20), which dispersing section (20) is adapted to accelerate emission of the active agent, wherein the, container (10) and the dispersing section (20) incorporate co-operating engagement means (14) adapted to allow the container (10) and the dispersing section (20) to be secured to each other, the engagement means (14) including container security means (16a/b, 40) and dispersing section security means (24a/b, 42a/b/c) adapted to co-operate with each other, wherein the presence of both the container security means (16a/b, 40) and the dispersing, section security means (24a/b, 42a/b/c) are required to effect engagement of the container (10) and the dispersing section (20).
