An air freshener device includes a rigid body or insert having a front face with a protrusion, a rear opposite the front face with a cavity corresponding to the protrusion, and an annular perimeter lip circumscribing the front face. A scent material is interspersed within the body. A flexible cover or shell extends across the rear of the body and covers the cavity, and has an inward facing annular groove surrounding and receiving the annular perimeter lip.