Chattanooga Fluidotherapy Double Extremity UnitFluidotherapy Dry heat therapy. Fluidization causes finely divided particles to acquire the characteristics of fluid. The Double Extremity Unit treats up to two hands or feet, independently or simultaneously, and includes 40 lbs. of Cellex Dry Heat Media. The Chattanooga Fluidotherapy is electronically programmable and features adjustable controls that allow quick temperature regulation. Each unit includes an automatic timer, wake up pre heater mode,