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. <EOS>