An air treatment device is described that comprises: a housing having at least one air inlet and at least one air outlet with at least one air passageway therebetween at least one fan located within said at least one air passageway at least one air filter retaining means arranged to releasably retain, in use, an air filter within a passageway at least one refill securing means arranged to releasably securing a refill of air treatment agent within the housing emanation means within the housing and wherein the housing is provided with a door to permit access to at least said air filter retaining means and wherein the air filter retaining means are configured to move from a first position when the door is closed in which the air filter substantially completely obstructs said at least one air passageway to move to a second position when the door is open such that the air filter no longer substantially completely obstructs said at least one air passageway.
