Enhancing mass transfer increases efficiencyand saves time on processes including heat and mass transfer. This increase inheat and mass transfer can be active or inactive. Electrohydrodynamics has beenconsidered as an active method to enhance heat and mass transfer, which inaddition consumes less energy than traditional drying methods, does not pose arisk to the environment. Electrohydrodynamic drying system includescharacteristics that affect the performance of the process. Influentialcharacteristics include voltage, reciprocal air flow velocity, type and numberof discharge electrodes, distance between discharge electrodes, distancebetween discharge and collection electrodes, and type of collection electrode.In this study, the effect of voltage, reciprocal air flow velocity, distancebetween discharge electrodes and number of discharge electrodes wereinvestigated. The obtained data were analyzed and the results showed thatincreasing the voltage and velocity of reciprocating air flow increases the dryspeed of tomato slices, but it should be considered that the size of thevoltage and the velocity of reciprocating air flow should be proportional toeach other. And the excessive increase of one does not overshadow the effect ofthe other. It was concluded that the electrohydrodynamic number should bearound number one and slightly higher. The number of discharge electrodes andthe distance between them also have optimal values, so that the arrangement ofdischarge electrodes that have the most overlap with the sample surface and useless discharge electrodes, has the highest efficiency. However, the number ofoptimal discharge electrodes has a certain limit, less than that amount reducesthe mass transfer rate. Another case is the use of discharge electrodes withdifferent shapes, which after analyzing the data, it is concluded that themesh-shaped collecting electrode has the best efficiency, because in thiscollection electrode, the corona wind can pass through the pores in the tomato.And pass the electrode and increase efficiency. Key words : Electrohydrodynamics,drying, heat and mass transfer, tomato, collection electrode