In a process for plasma treating a surface, a non-equilibrium atmospheric pressure plasma is generated within a dielectric housing having an inlet and an outlet through which a process gas flows from the inlet to the outlet. The terminal comprises a first terminal, a second terminal and an insulator. Furthermore, the present invention relates to a method to reduce the sodium content of a food composition by replacing sodium by the above mentioned compounds. The filter housing can also include integral projections on which a bypass actuation member can be mounted. , by printing a wax pattern that covers a region of the blanket layer corresponding to the desired patterned structure, and overlaps the lift-off pattern. The sidewall includes a filter mesh having a filter mesh size of less than approximately 0.