An aerosol spray device comprising a pressurised or pressurisable container holding a liquid to be discharged from the device by a gaseous propellant that is a gas at a temperature of 25°C and a pressure of at least 50 bar and a spray discharge assembly mounted on the container, said spray discharge assembly incorporating: a valve stem moveable from a first limit position to a second limit position to effect spray discharge from the device; a spray outlet region having an outlet orifice from which fluid from the container is discharged; a flow conduit for supplying fluid from the container to the spray outlet region, said flow conduit having at least one first inlet for liquid from the container and at least one second inlet at the same distance along the conduit as said first inlet(s) or downstream of said first inlet(s) for propellant gas from a headspace of the container; and a valving arrangement adapted such that movement of the valve stem from its first to second limit position opens said first and said second inlets to cause a bubble laden flow to be created in the flow conduit and movement of the valve stem back to its first limit position closes said first and said second inlets, wherein (i) the flow conduit has a cross-sectional area equivalent to a circle with a diameter of 0.5 mm to 1.5 mm at least in the region of the second inlet(s) defined in (iii) below, (ii) the first inlet(s) has/have a total cross-sectional area equivalent to that of a circle with a diameter of 0.15 mm to 1.5 mm with the proviso that at least one first inlet has a cross-sectional area equivalent to that of a circle with a diameter of at least 0.1 mm, and (iii) the second inlet(s) has/have a total cross-sectional area equivalent to that of a circle with a diameter of 0.1 mm to 0.7 mm diameter with the proviso that at least one second inlet has a cross-sectional area equivalent to that of a circle with a diameter of at least 0.10 mm and with the further proviso that the second inlet(s) has/have a total cross-sectional area less than that of the first inlet(s), and characterized in that (iv) the spray outlet orifice has a cross-sectional area less than the total cross-sectional area of the first inlet(s) and greater than the total cross-sectional area of the second inlet(s). a valve stem moveable from a first limit position to a second limit position to effect spray discharge from the device; a spray outlet region having an outlet orifice from which fluid from the container is discharged; a flow conduit for supplying fluid from the container to the spray outlet region, said flow conduit having at least one first inlet for liquid from the container and at least one second inlet at the same distance along the conduit as said first inlet(s) or downstream of said first inlet(s) for propellant gas from a headspace of the container; and a valving arrangement adapted such that movement of the valve stem from its first to second limit position opens said first and said second inlets to cause a bubble laden flow to be created in the flow conduit and movement of the valve stem back to its first limit position closes said first and said second inlets, (i) the flow conduit has a cross-sectional area equivalent to a circle with a diameter of 0.5 mm to 1.5 mm at least in the region of the second inlet(s) defined in (iii) below, (ii) the first inlet(s) has/have a total cross-sectional area equivalent to that of a circle with a diameter of 0.15 mm to 1.5 mm with the proviso that at least one first inlet has a cross-sectional area equivalent to that of a circle with a diameter of at least 0.1 mm, and (iii) the second inlet(s) has/have a total cross-sectional area equivalent to that of a circle with a diameter of 0.1 mm to 0.7 mm diameter with the proviso that at least one second inlet has a cross-sectional area equivalent to that of a circle with a diameter of at least 0.10 mm and with the further proviso that the second inlet(s) has/have a total cross-sectional area less than that of the first inlet(s), and characterized in that (iv) the spray outlet orifice has a cross-sectional area less than the total cross-sectional area of the first inlet(s) and greater than the total cross-sectional area of the second inlet(s).