The device includes a first section with an airflow passage, a reservoir containing a first pre-vapor formulation, a heater in communication with the reservoir and the airflow passage, the heater configured to at least partially vaporize the first pre-vapor formulation. An insert is in communication with the airflow passage, the insert being downstream of the heater. The insert includes a matrix with one or more portions of a filler material. The filler material is a plant-based cellulose material. The one or more portions defining interstices. A containing structure contains the matrix. The containing structure contacts at least side surfaces of the matrix. A consumable substance infused within the filler material, the at least one first consumable substance including at least one of nicotine, at least one first flavorant, at least one second pre-vapor formulation, a sub-combinations thereof, or a combinations thereof.