An aerosol delivery system has a fluid transfer article with a first region (34a) for holding an aerosol precursor and a second region (34b) to which the aerosol precursor is transferred from the first region. The second region includes an activation surface which interacts thermally with a heater (25) of the aerosol delivery system to form an aerosol from said aerosol precursor. The second region, and possibly also the first region, are formed from a porous polymer material. The activation surface is spaced from the heater to form an air-flow pathway between the activation surface and the heater. When the user sucks or inhales through the aerosol delivery system, air-flows through the air-flow pathway between the activation surface and the heater, so that aerosol passes from the heater and/or activation surface to the user in the air-flow.
