The subject of the present invention is seborrheic keratosis removal and prevention utilizing safe dependable effective biocompatible treatments with no scarring, bleeding, burning, freezing, shocking, and hypopigmentation or hyperpigmentation. The ionizer includes a main body and first and second discharge electrodes extending from the main body into the internal passageway in a spaced-apart relationship with each other. The computer continuously tracks the readings and, when sufficient data has been obtained, computes a curve fit to calculate the effective area of the test piece 126 at the exact specified pressure differential. The use of the shields provides overall protection to all of the locations where there may be sharp edges that could harm a person striking the location and thus there is a comprehensive approach to full protection of the bed frame.