Abstract: An aerosol device having a bowl with a bottom defining a drain, and a side wall extending from the bottom to a rim. A nozzle is disposed within the bowl. The nozzle defines a chamber and an outlet orifice directed toward the side wall of the bowl. The aerosol device includes a liquid container fluidly coupled to the nozzle via a first conduit having an outlet tip disposed within the chamber of the nozzle and a second conduit connecting a source of pressurized gas to the chamber of the nozzle. The outlet tip is in the form of a tube defining elongated slots communicating from inside the tube to outside the tube, the slots each having a width defined between two parallel tube surfaces. The aerosol device generates submicron liquid droplets, and is suitable for disinfecting porous articles in an enclosed volume.