the plasma unit is what's needed when a family or group has a pathogen or probems or to be run as a background for increased productivity/vitality. The 1500 unit is what's needed for personal use and it's 5k not 7500 that's for the professional which they already have another model being produced. At least they're keeping up with the times the new unit runs 150,000hz accuratly and without occilation of frequencies effective for 50+feet. I'm working on the docs at the practice I'm at to incorporate this. The ondamed is 25000$ but so much is fda approval.
