Disclosed is an attachment for a hand held appliance comprising an inlet; an outlet; and a fluid flow path between the inlet and the outlet, wherein the outlet comprises at least one slot extending from near an inlet end of the attachment towards a distal end of the attachment and wherein the outlet is at least partially defined by an external surface of the attachment wherein fluid emitted from the outlet is blown along the external surface. The slot may extend substantially along the length of the attachment and fluid emitted from the outlet is attracted to the surface of the attachment. The outlet may comprise a plurality of slots radially spaced around the attachment. Fluid emitted from the outlet flows around the external surface of the attachment and is tangential to the external surface of the attachment. The attachment has a longitudinal axis extending from the first end to the distal end and the at least one slot may be parallel to the longitudinal axis, alternatively the at least one slot is non-parallel to the longitudinal axis. The attachment may further comprise a flow directing element between the inlet and the outlet. Also disclosed is an appliance including such as attachment.