An atomizer, comprising: a housing having a liquid inlet; at least one primary orifice positioned at the liquid inlet, the at least one primary orifice configured to disperse a stream of liquid into a plurality of liquid droplets; an impingement surface against which the plurality of liquid droplets contact to break up the plurality of liquid droplets into a plurality of smaller secondary liquid droplets and create a thin film of secondary liquid droplets on the impingement surface, a portion of the impingement surface being arranged at an angle in the range of about 0° to about 60° relative to a plane perpendicular to a longitudinal axis of the housing; at least one pressurized air channel configured to deliver an airflow into contact with the secondary liquid droplets; a plurality of secondary orifices through which the secondary liquid droplets pass to exit the housing, wherein a size of the plurality of secondary liquid droplets is reduced when passing through the plurality of secondary orifices; a mixing chamber defined at least in part surrounding the impingement surface radially outward from the impingement surface, and including an annular region extending axially away from the impingement surface towards the plurality of secondary orifices, wherein the at least one pressurized air channel is arranged at a radial angle in the range of about 30° to about 60° relative to the longitudinal axis of the housing, characterised in that it is also arranged at a tangential angle to assist in providing a helical rotation to the airflow around the longitudinal axis of the housing and create a vortex flow within the housing and a vortex effect in the annulus region. a housing having a liquid inlet; at least one primary orifice positioned at the liquid inlet, the at least one primary orifice configured to disperse a stream of liquid into a plurality of liquid droplets; an impingement surface against which the plurality of liquid droplets contact to break up the plurality of liquid droplets into a plurality of smaller secondary liquid droplets and create a thin film of secondary liquid droplets on the impingement surface, a portion of the impingement surface being arranged at an angle in the range of about 0° to about 60° relative to a plane perpendicular to a longitudinal axis of the housing; at least one pressurized air channel configured to deliver an airflow into contact with the secondary liquid droplets; a plurality of secondary orifices through which the secondary liquid droplets pass to exit the housing, wherein a size of the plurality of secondary liquid droplets is reduced when passing through the plurality of secondary orifices; a mixing chamber defined at least in part surrounding the impingement surface radially outward from the impingement surface, and including an annular region extending axially away from the impingement surface towards the plurality of secondary orifices, wherein the at least one pressurized air channel is arranged at a radial angle in the range of about 30° to about 60° relative to the longitudinal axis of the housing, characterised in that it is also arranged at a tangential angle to assist in providing a helical rotation to the airflow around the longitudinal axis of the housing and create a vortex flow within the housing and a vortex effect in the annulus region.