Abstract: An air freshener device includes a base unit and a fragrance cartridge. The base unit includes an electrical connector, a heating element, a pair of interior sidewalls, an interior end wall, and a first shaped feature. The pair of interior sidewalls and the interior end wall extend substantially vertically from the floor portion and cooperate to at least partially define a receptacle. The first shaped feature is associated with one of the floor portion, the interior end wall, and one of the pair of interior sidewalls. The fragrance cartridge includes an absorbent pad, a shell body, and a second shaped feature. The shell body substantially encompasses and supports the absorbent pad and includes a shell wall. The second shaped feature is associated with the shell wall and is configured for mated interaction with the first shaped feature of the base unit.