A backpack blower is provided with a water spray capability to suppress the generation of dust when used as a blower, and to also allow for use as a basic power washer. A leaf blower power unit having an engine driving a fan is interconnected with a wand having an outlet orifice. A spray nozzle is positioned within the wand adjacent the outlet orifice. A source of liquid to be sprayed is interconnected through a control valve to the spray valve such that a spray of water can be introduced into the vortex of the air being emitted from the wand. Both the speed of the airflow and volume of the water being introduced into the vortex may be regulated by the user in accordance with the use to which the unit is put.
