An apparatus comprising: a housing; a first assessment section defining a first airflow pathway, the first assessment section comprising: a first conduit comprising an inlet end and an outlet end, the inlet end being arranged to receive a mouth end of an aerosol-generating system or a smoking article; a first pump in fluid communication with the outlet end of the first conduit and arranged to draw fluid through the first conduit, from the inlet end to the outlet end; and a first cover arranged on the housing, the first cover and the housing together forming a first chamber, the first chamber enclosing at least the inlet end of the first conduit and an aerosol-generating system or smoking article received in the inlet end of the first conduit; and a second assessment section defining a second airflow pathway, the second assessment section comprising: a second conduit comprising an inlet end and an outlet end, the inlet end being arranged to receive a mouth end of an aerosol-generating device or a smoking article; a second pump in fluid communication with the outlet end of the second conduit and arranged to draw fluid through the second conduit from the inlet end to the outlet end; and a second cover arranged on the housing, the second cover and the housing together forming a second chamber, the second chamber enclosing the inlet end of the second conduit and an aerosol-generating article or smoking article received in the inlet end of the second conduit. a housing; a first assessment section defining a first airflow pathway, the first assessment section comprising: a first conduit comprising an inlet end and an outlet end, the inlet end being arranged to receive a mouth end of an aerosol-generating system or a smoking article; a first pump in fluid communication with the outlet end of the first conduit and arranged to draw fluid through the first conduit, from the inlet end to the outlet end; and a first cover arranged on the housing, the first cover and the housing together forming a first chamber, the first chamber enclosing at least the inlet end of the first conduit and an aerosol-generating system or smoking article received in the inlet end of the first conduit; and a first conduit comprising an inlet end and an outlet end, the inlet end being arranged to receive a mouth end of an aerosol-generating system or a smoking article; a first pump in fluid communication with the outlet end of the first conduit and arranged to draw fluid through the first conduit, from the inlet end to the outlet end; and a first cover arranged on the housing, the first cover and the housing together forming a first chamber, the first chamber enclosing at least the inlet end of the first conduit and an aerosol-generating system or smoking article received in the inlet end of the first conduit; and a second assessment section defining a second airflow pathway, the second assessment section comprising: a second conduit comprising an inlet end and an outlet end, the inlet end being arranged to receive a mouth end of an aerosol-generating device or a smoking article; a second pump in fluid communication with the outlet end of the second conduit and arranged to draw fluid through the second conduit from the inlet end to the outlet end; and a second cover arranged on the housing, the second cover and the housing together forming a second chamber, the second chamber enclosing the inlet end of the second conduit and an aerosol-generating article or smoking article received in the inlet end of the second conduit. a second conduit comprising an inlet end and an outlet end, the inlet end being arranged to receive a mouth end of an aerosol-generating device or a smoking article; a second pump in fluid communication with the outlet end of the second conduit and arranged to draw fluid through the second conduit from the inlet end to the outlet end; and a second cover arranged on the housing, the second cover and the housing together forming a second chamber, the second chamber enclosing the inlet end of the second conduit and an aerosol-generating article or smoking article received in the inlet end of the second conduit.