The Avacen Machine is an FDA approved device now available for public purchase through:

https://avacenmedical.com/casrey

The benefits of the Avacen 100 heated frequency therapy is based on the distribution of oxygen into the body’s microcirculation. Many areas of our body have not been optimally oxygenated such as the tips of our fingers, toes, brain, among other cells due to disease affecting the microcirculation of blood flow. The Avacen machine promotes microcirculation in our entire body to achieve improvement reducing pain and inflammation.

https://www.avacen.com/how-it-works/