A removable housing component for attachment to an aerosol generation device housing is provided. The component includes first and second ends, the component extending between the first and second ends to define a component axis, a concave inner surface, the surface having a concave profile in a direction along the component axis, and a first plurality of elongate protrusions extending from the concave inner surface and spaced apart from each other in the direction along the component axis. An aerosol generation device including a housing is also provided.