These ZW10W-26WL series Water Mistfan are centrifugal force technology. It is no nozzle jammed problem and required no filtration system or nozzles, no complicate pump connection and no requirement of complicate electrical cable. The mist fans are Include oscillating fan head, adjustable speeds control, adjustable mist volume control. This system will provide very comfortable water spray to clear the atmosphere; the surrounding air will be comfortable with clean, fresh and cool.