Preval is a cordless, portable spray gun that is hand held. Very popular for automotive, OEM and Commercial Grade paint touch ups and applying coatings. Makes for quick applications and a breeze at getting into hard to reach area's.
Preval's patented design has a proprietary technology that makes a highly controlled atomized spray from any liquid. When the button is pressed, propellant and liquid are mixed and dispensed as a spray at the nozzle by action of the venturi effect. Liquid from the jar is pulled up the tube as propellant travels across the holes in the red insert (inside the button). The propellant and liquid do not mix prior to being dispensed out of the nozzle.