An air treatment media dispenser assembly that passively delivers an air treatment media to an environment. The dispenser assembly includes a carriage that is constructed to removably cooperate with a replaceable container. The container slidably cooperates with the carriage in a manner wherein the container is secured to the carriage without perforation of the container and, when axially translated relative to one another, perforates a seal of the container to allow egress of the contents of the container to the carriage and subsequent passive communication of the media to an environment.
